update exclude list on results of 21.0.7_b968.7 test runs

This reverts commit a0c48294d2.

jb/project/tools/common/scripts/common.sh

@@ -104,6 +104,12 @@ else
   WITH_BUNDLED_FREETYPE=""
 fi
 
+if [ "$bundle_type" == "lb" ]; then
+  WITH_VULKAN=""
+else
+  WITH_VULKAN="--with-vulkan"
+fi
+
 REPRODUCIBLE_BUILD_OPTS="--with-source-date=$SOURCE_DATE_EPOCH
   --with-hotspot-build-time=$BUILD_TIME
   --with-copyright-year=$COPYRIGHT_YEAR

jb/project/tools/linux/scripts/mkimages_aarch64.sh

@@ -35,7 +35,7 @@ function do_configure {
     --with-version-opt=b"$build_number" \
     --with-boot-jdk="$BOOT_JDK" \
     --enable-cds=yes \
-    --with-vulkan \
+    $WITH_VULKAN \
     $DISABLE_WARNINGS_AS_ERRORS \
     $STATIC_CONF_ARGS \
     $REPRODUCIBLE_BUILD_OPTS \
@@ -113,6 +113,11 @@ case "$bundle_type" in
     jbr_name_postfix="_${bundle_type}"
     do_maketest=1
     ;;
+  "lb")
+    do_reset_changes=1
+    jbr_name_postfix="_${bundle_type}"
+    do_maketest=1
+    ;;
   "nomod" | "")
     bundle_type=""
     ;;
@@ -141,7 +146,7 @@ JBRSDK_BUNDLE=jbrsdk
 echo Fixing permissions
 chmod -R a+r $JSDK
 
-if [ "$bundle_type" == "jcef" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "lb" ]; then
   git apply -p0 < jb/project/tools/patches/add_jcef_module_aarch64.patch || do_exit $?
   update_jsdk_mods $JSDK $JCEF_PATH/jmods $JSDK/jmods $JSDK_MODS_DIR || do_exit $?
   cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed
@@ -154,7 +159,7 @@ create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" ||
 
 # create sdk image bundle
 modules=$(cat $JSDK/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\n//g) || do_exit $?
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "lb" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
   modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
 fi
 create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?

jb/project/tools/linux/scripts/mkimages_x64.sh

@@ -42,7 +42,7 @@ function do_configure {
     --with-version-opt=b"$build_number" \
     --with-boot-jdk="$BOOT_JDK" \
     --enable-cds=yes \
-    --with-vulkan \
+    $WITH_VULKAN \
     $LINUX_TARGET \
     $DISABLE_WARNINGS_AS_ERRORS \
     $STATIC_CONF_ARGS \
@@ -121,6 +121,11 @@ case "$bundle_type" in
     jbr_name_postfix="_${bundle_type}"
     do_maketest=1
     ;;
+  "lb")
+    do_reset_changes=1
+    jbr_name_postfix="_${bundle_type}"
+    do_maketest=1
+    ;;
   "nomod" | "")
     bundle_type=""
     ;;
@@ -149,7 +154,7 @@ JBRSDK_BUNDLE=jbrsdk
 echo Fixing permissions
 chmod -R a+r $JSDK
 
-if [ "$bundle_type" == "jcef" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "lb" ]; then
   git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
   update_jsdk_mods $JSDK $JCEF_PATH/jmods $JSDK/jmods $JSDK_MODS_DIR || do_exit $?
   cp $JCEF_PATH/jmods/* $JSDK_MODS_DIR # $JSDK/jmods is not changed
@@ -162,7 +167,7 @@ create_image_bundle "jbr${jbr_name_postfix}" "jbr" $JSDK_MODS_DIR "$modules" ||
 
 # create sdk image bundle
 modules=$(cat $JSDK/release | grep MODULES | sed s/MODULES=//g | sed s/' '/','/g | sed s/\"//g | sed s/\\n//g) || do_exit $?
-if [ "$bundle_type" == "jcef" ]|| [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "lb" ] || [ "$bundle_type" == "$JBRSDK_BUNDLE" ]; then
   modules=${modules},$(get_mods_list "$JCEF_PATH"/jmods)
 fi
 create_image_bundle "$JBRSDK_BUNDLE${jbr_name_postfix}" $JBRSDK_BUNDLE $JSDK_MODS_DIR "$modules" || do_exit $?

jb/project/tools/linux/scripts/mkimages_x86.sh

@@ -92,7 +92,7 @@ WITH_DEBUG_LEVEL="--with-debug-level=release"
 RELEASE_NAME=linux-x86-server-release
 
 case "$bundle_type" in
-  "jcef")
+  "jcef" | "lb")
     echo "not implemented" && do_exit 1
     ;;
   "nomod" | "")
@@ -119,7 +119,7 @@ JBRSDK_BUNDLE=jbrsdk
 echo Fixing permissions
 chmod -R a+r $JSDK
 
-if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ]; then
+if [ "$bundle_type" == "jcef" ] || [ "$bundle_type" == "fd" ] || [ "$bundle_type" == "lb" ]; then
   jbr_name_postfix="_${bundle_type}"
 else
   jbr_name_postfix=""

src/java.base/share/classes/com/jetbrains/internal/IoOverNio.java

@@ -1,163 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.jetbrains.internal;
-
-import jdk.internal.misc.VM;
-import sun.nio.ch.FileChannelImpl;
-import sun.security.action.GetPropertyAction;
-
-import java.io.Closeable;
-import java.lang.Boolean;
-import java.nio.file.FileSystems;
-
-/**
- * Internal methods to control the feature of using {@link java.nio.file} inside {@link java.io}.
- */
-public class IoOverNio {
-    /** Preferences of debug logging. */
-    public static final Debug DEBUG;
-    public static final boolean IS_ENABLED_IN_GENERAL =
-            GetPropertyAction.privilegedGetProperty("jbr.java.io.use.nio", "true").equalsIgnoreCase("true");
-    private static final ThreadLocal<Integer> ALLOW_IN_THIS_THREAD = new ThreadLocal<>();
-
-    static {
-        String value = GetPropertyAction.privilegedGetProperty("jbr.java.io.use.nio.debug", "");
-        switch (value) {
-            case "error":
-                DEBUG = Debug.ERROR;
-                break;
-            case "no_error":
-                DEBUG = Debug.NO_ERROR;
-                break;
-            case "all":
-                DEBUG = Debug.ALL;
-                break;
-            default:
-                DEBUG = Debug.NO;
-                break;
-        }
-    }
-
-    private IoOverNio() {
-    }
-
-    public static boolean isAllowedInThisThread() {
-        return ALLOW_IN_THIS_THREAD.get() == null;
-    }
-
-    /**
-     * This method helps to prevent infinite recursion in specific areas like class loading.
-     * An attempt to access {@link FileSystems#getDefault()} during class loading
-     * would require loading the class of the default file system provider,
-     * which would recursively require the access to {@link FileSystems#getDefault()}.
-     * <p>
-     * Usage:
-     * <pre>
-     * {@code
-     * @SuppressWarnings("try")
-     * void method() {
-     *     try (var ignored = IoOverNio.disableInThisThread()) {
-     *         // do something here.
-     *     }
-     * }
-     * }
-     * </pre>
-     * </p>
-     *
-     * <hr/>
-     *
-     * An implementation note.
-     * There may be a temptation to call {@link FileSystems#getDefault()} at some very early stage of loading JVM.
-     * However, it won't be enough.
-     * {@link FileSystems#getDefault()} forces an immediate load only of
-     * the corresponding instance of {@link java.nio.file.spi.FileSystemProvider}.
-     * Meanwhile, a correct operation of a NIO filesystem requires also implementations of {@link java.nio.file.Path},
-     * {@link java.nio.file.FileSystem}, {@link java.nio.file.attribute.BasicFileAttributes} and many other classes.
-     * Without this method, the classloader still can dive into an infinite recursion.
-     */
-    public static ThreadLocalCloseable disableInThisThread() {
-        Integer value = ALLOW_IN_THIS_THREAD.get();
-        if (value == null) {
-            value = 0;
-        }
-        ++value;
-        ALLOW_IN_THIS_THREAD.set(value);
-        return ThreadLocalCloseable.INSTANCE;
-    }
-
-    public enum Debug {
-        NO(false, false),
-        ERROR(true, false),
-        NO_ERROR(false, true),
-        ALL(true, true);
-
-        private final boolean writeErrors;
-        private final boolean writeTraces;
-
-        Debug(boolean writeErrors, boolean writeTraces) {
-            this.writeErrors = writeErrors;
-            this.writeTraces = writeTraces;
-        }
-
-        private boolean mayWriteAnything() {
-            return VM.isBooted() && isAllowedInThisThread();
-        }
-
-        public boolean writeErrors() {
-            return writeErrors && mayWriteAnything();
-        }
-
-        public boolean writeTraces() {
-            return writeTraces && mayWriteAnything();
-        }
-    }
-
-    public static class ThreadLocalCloseable implements AutoCloseable {
-        private static final ThreadLocalCloseable INSTANCE = new ThreadLocalCloseable();
-
-        private ThreadLocalCloseable() {
-        }
-
-        @Override
-        public void close() {
-            Integer value = ALLOW_IN_THIS_THREAD.get();
-            --value;
-            if (value == 0) {
-                value = null;
-            }
-            ALLOW_IN_THIS_THREAD.set(value);
-        }
-    }
-
-    /**
-     * Since it's complicated to change Java API, some new function arguments are transferred via thread local variables.
-     * This variable allows to set {@code parent} in {@link FileChannelImpl} and therefore to avoid closing the file
-     * descriptor too early.
-     * <p>
-     * The problem was found with the test {@code jtreg:test/jdk/java/io/FileDescriptor/Sharing.java}.
-     */
-    public static final ThreadLocal<Closeable> PARENT_FOR_FILE_CHANNEL_IMPL = new ThreadLocal<>();
-}

src/java.base/share/classes/com/jetbrains/internal/IoToNioErrorMessageHolder.java

@@ -1,61 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.jetbrains.internal;
-
-import java.io.IOException;
-import java.util.WeakHashMap;
-
-/**
- * The only purpose of this class is to mimic exception messages of `java.io`
- * when `java.nio.file` is used as a backend.
- */
-public class IoToNioErrorMessageHolder {
-    private IoToNioErrorMessageHolder() { }
-
-    /**
-     * While an exception is being thrown and handled inside {@code catch}-blocks,
-     * at least one strong reference exists in the stack.
-     * GC won't bring harm if {@link #removeMessage(IOException)} is called inside a {@code catch}-block.
-     */
-    private static final WeakHashMap<IOException, String> messages = new WeakHashMap<>();
-
-    public static void addMessage(IOException e, String message) {
-        if (IoOverNio.IS_ENABLED_IN_GENERAL) {
-            synchronized (messages) {
-                messages.put(e, message);
-            }
-        }
-    }
-
-    public static String removeMessage(IOException e) {
-        if (IoOverNio.IS_ENABLED_IN_GENERAL) {
-            synchronized (messages) {
-                return messages.remove(e);
-            }
-        }
-        return null;
-    }
-}

src/java.base/share/classes/java/io/ExternalChannelHolder.java

@@ -1,70 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.io;
-
-import sun.nio.ch.FileChannelImpl;
-
-import java.nio.channels.FileChannel;
-
-/**
- * A channel returned by {@link #getInterruptibleChannel()} must be interruptible,
- * but the channel used inside this class must be uninterruptible.
- * This class holds the channel for external usage, which may differ from {@link #channel}.
- */
-class ExternalChannelHolder {
-    private final Object synchronizationPoint;
-    private final FileChannel channel;
-    private final NioChannelCleanable channelCleanable;
-    private FileChannel externallySharedChannel;
-
-    ExternalChannelHolder(Object owner, FileChannel channel, NioChannelCleanable channelCleanable) {
-        this.synchronizationPoint = owner;
-        this.channel = channel;
-        this.channelCleanable = channelCleanable;
-    }
-
-    FileChannel getInterruptibleChannel() {
-        synchronized (synchronizationPoint) {
-            if (externallySharedChannel == null) {
-                externallySharedChannel = channel;
-                if (externallySharedChannel instanceof FileChannelImpl fci) {
-                    fci = fci.clone();
-                    fci.setInterruptible();
-                    externallySharedChannel = fci;
-                }
-            }
-        }
-        channelCleanable.setChannel(null);
-        return externallySharedChannel;
-    }
-
-    void close() throws IOException {
-        FileChannel ch = externallySharedChannel;
-        if (ch != null) {
-            ch.close();
-        }
-    }
-}

src/java.base/share/classes/java/io/File.java

@@ -35,11 +35,7 @@ import java.nio.file.Path;
 import java.security.SecureRandom;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.function.Supplier;
-
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.util.StaticProperty;
-import sun.security.action.GetPropertyAction;
 
 /**
  * An abstract representation of file and directory pathnames.
@@ -152,18 +148,11 @@ import sun.security.action.GetPropertyAction;
 public class File
     implements Serializable, Comparable<File>
 {
+
     /**
      * The FileSystem object representing the platform's local file system.
      */
-    private static final FileSystem FS;
-
-    static {
-        if (IoOverNio.IS_ENABLED_IN_GENERAL) {
-            FS = new IoOverNioFileSystem(DefaultFileSystem.getFileSystem());
-        } else {
-            FS = DefaultFileSystem.getFileSystem();
-        }
-    }
+    private static final FileSystem FS = DefaultFileSystem.getFileSystem();
 
     /**
      * This abstract pathname's normalized pathname string. A normalized

src/java.base/share/classes/java/io/FileInputStream.java

@@ -25,25 +25,12 @@
 
 package java.io;
 
-import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
-import java.nio.file.Files;
-import java.nio.file.InvalidPathException;
-import java.nio.file.Path;
-import java.nio.file.StandardOpenOption;
 import java.util.Arrays;
-
-import java.util.Set;
-
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.misc.Blocker;
-
 import jdk.internal.util.ArraysSupport;
-import jdk.internal.vm.annotation.Stable;
 import sun.nio.ch.FileChannelImpl;
 
-import static com.jetbrains.internal.IoOverNio.DEBUG;
-
 /**
  * A {@code FileInputStream} obtains input bytes
  * from a file in a file system. What files
@@ -88,20 +75,6 @@ public class FileInputStream extends InputStream
 
     private volatile boolean closed;
 
-    // This field indicates whether the file is a regular file as some
-    // operations need the current position which requires seeking
-    private @Stable Boolean isRegularFile;
-
-    private final boolean useNio;
-
-    @SuppressWarnings({
-            "FieldCanBeLocal",
-            "this-escape",  // It immediately converts into a phantom reference.
-    })
-    private final NioChannelCleanable channelCleanable = new NioChannelCleanable(this);
-
-    private final ExternalChannelHolder externalChannelHolder;
-
     /**
      * Creates a {@code FileInputStream} by
      * opening a connection to an actual file,
@@ -173,40 +146,11 @@ public class FileInputStream extends InputStream
         if (file.isInvalid()) {
             throw new FileNotFoundException("Invalid file path");
         }
-        path = file.getPath();
-
-        java.nio.file.FileSystem nioFs = IoOverNioFileSystem.acquireNioFs(path);
-        Path nioPath = null;
-        if (nioFs != null && path != null) {
-            try {
-                nioPath = nioFs.getPath(path);
-                isRegularFile = Files.isRegularFile(nioPath);
-            } catch (InvalidPathException|SecurityException ignored) {
-                // Nothing.
-            }
-        }
-
-        // Two significant differences between the legacy java.io and java.nio.files:
-        // * java.nio.file allows to open directories as streams, java.io.FileInputStream doesn't.
-        // * java.nio.file doesn't work well with pseudo devices, i.e., `seek()` fails, while java.io works well.
-        useNio = nioPath != null && isRegularFile == Boolean.TRUE;
-
-        if (useNio) {
-            var bundle = IoOverNioFileSystem.initializeStreamUsingNio(
-                    this, nioFs, file, nioPath, Set.of(StandardOpenOption.READ), channelCleanable);
-            channel = bundle.channel();
-            fd = bundle.fd();
-            externalChannelHolder = bundle.externalChannelHolder();
-        } else {
-            fd = new FileDescriptor();
-            fd.attach(this);
-            open(path);
-            FileCleanable.register(fd);       // open set the fd, register the cleanup
-            externalChannelHolder = null;
-        }
-        if (DEBUG.writeTraces()) {
-            System.err.printf("Created a FileInputStream for %s%n", file);
-        }
+        fd = new FileDescriptor();
+        fd.attach(this);
+        path = name;
+        open(name);
+        FileCleanable.register(fd);       // open set the fd, register the cleanup
     }
 
     /**
@@ -234,9 +178,6 @@ public class FileInputStream extends InputStream
      * @see        SecurityManager#checkRead(java.io.FileDescriptor)
      */
     public FileInputStream(FileDescriptor fdObj) {
-        useNio = false;
-        externalChannelHolder = null;
-
         @SuppressWarnings("removal")
         SecurityManager security = System.getSecurityManager();
         if (fdObj == null) {
@@ -287,7 +228,7 @@ public class FileInputStream extends InputStream
     public int read() throws IOException {
         long comp = Blocker.begin();
         try {
-            return implRead();
+            return read0();
         } finally {
             Blocker.end(comp);
         }
@@ -295,17 +236,6 @@ public class FileInputStream extends InputStream
 
     private native int read0() throws IOException;
 
-    private int implRead() throws IOException {
-        if (!useNio) {
-            return read0();
-        } else {
-            ByteBuffer buffer = ByteBuffer.allocate(1);
-            int nRead = channel.read(buffer);
-            buffer.rewind();
-            return nRead == 1 ? (buffer.get() & 0xFF) : -1;
-        }
-    }
-
     /**
      * Reads a subarray as a sequence of bytes.
      * @param     b the data to be written
@@ -330,26 +260,12 @@ public class FileInputStream extends InputStream
     public int read(byte[] b) throws IOException {
         long comp = Blocker.begin();
         try {
-            return implRead(b);
+            return readBytes(b, 0, b.length);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private int implRead(byte[] b) throws IOException {
-        if (!useNio) {
-            return readBytes(b, 0, b.length);
-        } else {
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b);
-                return channel.read(buffer);
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                return readBytes(b, 0, b.length);
-            }
-        }
-    }
-
     /**
      * Reads up to {@code len} bytes of data from this input stream
      * into an array of bytes. If {@code len} is not zero, the method
@@ -368,26 +284,12 @@ public class FileInputStream extends InputStream
     public int read(byte[] b, int off, int len) throws IOException {
         long comp = Blocker.begin();
         try {
-            return implRead(b, off, len);
+            return readBytes(b, off, len);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private int implRead(byte[] b, int off, int len) throws IOException {
-        if (!useNio) {
-            return readBytes(b, off, len);
-        } else {
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
-                return channel.read(buffer);
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                return readBytes(b, off, len);
-            }
-        }
-    }
-
     @Override
     public byte[] readAllBytes() throws IOException {
         long length = length();
@@ -474,8 +376,8 @@ public class FileInputStream extends InputStream
     @Override
     public long transferTo(OutputStream out) throws IOException {
         long transferred = 0L;
-        if (out instanceof FileOutputStream fos && isRegularFile != Boolean.FALSE) {
-            FileChannel fc = useNio ? channel : getChannel();
+        if (out instanceof FileOutputStream fos) {
+            FileChannel fc = getChannel();
             long pos = fc.position();
             transferred = fc.transferTo(pos, Long.MAX_VALUE, fos.getChannel());
             long newPos = pos + transferred;
@@ -494,11 +396,7 @@ public class FileInputStream extends InputStream
     private long length() throws IOException {
         long comp = Blocker.begin();
         try {
-            if (!useNio) {
-                return length0();
-            } else {
-                return channel.size();
-            }
+            return length0();
         } finally {
             Blocker.end(comp);
         }
@@ -508,11 +406,7 @@ public class FileInputStream extends InputStream
     private long position() throws IOException {
         long comp = Blocker.begin();
         try {
-            if (!useNio) {
-                return position0();
-            } else {
-                return channel.position();
-            }
+            return position0();
         } finally {
             Blocker.end(comp);
         }
@@ -547,15 +441,7 @@ public class FileInputStream extends InputStream
     public long skip(long n) throws IOException {
         long comp = Blocker.begin();
         try {
-            if (isRegularFile == Boolean.FALSE) {
-                return super.skip(n);
-            } else if (!useNio) {
-                return skip0(n);
-            } else {
-                long startPos = channel.position();
-                channel.position(startPos + n);
-                return channel.position() - startPos;
-            }
+            return skip0(n);
         } finally {
             Blocker.end(comp);
         }
@@ -584,14 +470,7 @@ public class FileInputStream extends InputStream
     public int available() throws IOException {
         long comp = Blocker.begin();
         try {
-            if (!useNio) {
-                return available0();
-            } else {
-                long size = channel.size();
-                long pos = channel.position();
-                long avail = size > pos ? (size - pos) : 0;
-                return avail > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int)avail;
-            }
+            return available0();
         } finally {
             Blocker.end(comp);
         }
@@ -642,10 +521,6 @@ public class FileInputStream extends InputStream
             fc.close();
         }
 
-        if (externalChannelHolder != null) {
-            externalChannelHolder.close();
-        }
-
         fd.closeAll(new Closeable() {
             public void close() throws IOException {
                fd.close();
@@ -686,10 +561,6 @@ public class FileInputStream extends InputStream
      * @since 1.4
      */
     public FileChannel getChannel() {
-        if (externalChannelHolder != null) {
-            return externalChannelHolder.getInterruptibleChannel();
-        }
-
         FileChannel fc = this.channel;
         if (fc == null) {
             synchronized (this) {
@@ -717,12 +588,4 @@ public class FileInputStream extends InputStream
     static {
         initIDs();
     }
-
-    /**
-     * This method is called by JFR. See {@code FileInputStreamInstrumentor.java}.
-     */
-    @SuppressWarnings("unused")
-    private boolean ioOverNioInThisThread() {
-        return IoOverNio.isAllowedInThisThread();
-    }
 }

src/java.base/share/classes/java/io/FileOutputStream.java

@@ -25,22 +25,11 @@
 
 package java.io;
 
-import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
-import java.nio.file.Files;
-import java.nio.file.OpenOption;
-import java.nio.file.Path;
-import java.nio.file.StandardOpenOption;
-import java.nio.file.attribute.DosFileAttributeView;
-import java.nio.file.attribute.DosFileAttributes;
-import java.util.Set;
-
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.access.SharedSecrets;
 import jdk.internal.access.JavaIOFileDescriptorAccess;
 import jdk.internal.misc.Blocker;
 import sun.nio.ch.FileChannelImpl;
-import static com.jetbrains.internal.IoOverNio.DEBUG;
 
 
 /**
@@ -100,16 +89,6 @@ public class FileOutputStream extends OutputStream
 
     private volatile boolean closed;
 
-    private final boolean useNio;
-
-    @SuppressWarnings({
-            "FieldCanBeLocal",
-            "this-escape",  // It immediately converts into a phantom reference.
-    })
-    private final NioChannelCleanable channelCleanable = new NioChannelCleanable(this);
-
-    private final ExternalChannelHolder externalChannelHolder;
-
     /**
      * Creates a file output stream to write to the file with the
      * specified name. A new {@code FileDescriptor} object is
@@ -229,7 +208,6 @@ public class FileOutputStream extends OutputStream
      * @see        java.lang.SecurityManager#checkWrite(java.lang.String)
      * @since 1.4
      */
-    @SuppressWarnings("this-escape")
     public FileOutputStream(File file, boolean append)
         throws FileNotFoundException
     {
@@ -245,48 +223,12 @@ public class FileOutputStream extends OutputStream
         if (file.isInvalid()) {
             throw new FileNotFoundException("Invalid file path");
         }
-
+        this.fd = new FileDescriptor();
+        fd.attach(this);
         this.path = name;
-        java.nio.file.FileSystem nioFs = IoOverNioFileSystem.acquireNioFs(path);
-        useNio = path != null && nioFs != null;
-        if (useNio) {
-            Path nioPath = nioFs.getPath(path);
 
-            // java.io backend doesn't open DOS hidden files for writing, but java.nio.file opens.
-            // This code mimics the old behavior.
-            if (nioFs.getSeparator().equals("\\")) {
-                DosFileAttributes attrs = null;
-                try {
-                    var view = Files.getFileAttributeView(nioPath, DosFileAttributeView.class);
-                    if (view != null) {
-                        attrs = view.readAttributes();
-                    }
-                } catch (IOException | UnsupportedOperationException | SecurityException ignored) {
-                    // Windows paths without DOS attributes? Not a problem in this case.
-                }
-                if (attrs != null && (attrs.isHidden() || attrs.isDirectory())) {
-                    throw new FileNotFoundException(file.getPath() + " (Access is denied)");
-                }
-            }
-
-            Set<OpenOption> options = append
-                    ? Set.of(StandardOpenOption.WRITE, StandardOpenOption.CREATE, StandardOpenOption.APPEND)
-                    : Set.of(StandardOpenOption.WRITE, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING);
-            var bundle = IoOverNioFileSystem.initializeStreamUsingNio(
-                    this, nioFs, file, nioPath, options, channelCleanable);
-            channel = bundle.channel();
-            fd = bundle.fd();
-            externalChannelHolder = bundle.externalChannelHolder();
-        } else {
-            this.fd = new FileDescriptor();
-            fd.attach(this);
-            open(name, append);
-            FileCleanable.register(fd);   // open sets the fd, register the cleanup
-            externalChannelHolder = null;
-        }
-        if (DEBUG.writeTraces()) {
-            System.err.printf("Created a FileOutputStream for %s%n", file);
-        }
+        open(name, append);
+        FileCleanable.register(fd);   // open sets the fd, register the cleanup
     }
 
     /**
@@ -313,9 +255,6 @@ public class FileOutputStream extends OutputStream
      * @see        java.lang.SecurityManager#checkWrite(java.io.FileDescriptor)
      */
     public FileOutputStream(FileDescriptor fdObj) {
-        useNio = false;
-        externalChannelHolder = null;
-
         @SuppressWarnings("removal")
         SecurityManager security = System.getSecurityManager();
         if (fdObj == null) {
@@ -374,26 +313,12 @@ public class FileOutputStream extends OutputStream
         boolean append = FD_ACCESS.getAppend(fd);
         long comp = Blocker.begin();
         try {
-            implWrite(b, append);
+            write(b, append);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private void implWrite(int b, boolean append) throws IOException {
-        if (!useNio) {
-            write(b, append);
-        } else {
-            // 'append' is ignored; the channel is supposed to obey the mode in which the file was opened
-            byte[] array = new byte[1];
-            array[0] = (byte) b;
-            ByteBuffer buffer = ByteBuffer.wrap(array);
-            do {
-                channel.write(buffer);
-            } while (buffer.hasRemaining());
-        }
-    }
-
     /**
      * Writes a sub array as a sequence of bytes.
      * @param b the data to be written
@@ -418,7 +343,7 @@ public class FileOutputStream extends OutputStream
         boolean append = FD_ACCESS.getAppend(fd);
         long comp = Blocker.begin();
         try {
-            implWriteBytes(b, 0, b.length, append);
+            writeBytes(b, 0, b.length, append);
         } finally {
             Blocker.end(comp);
         }
@@ -439,29 +364,12 @@ public class FileOutputStream extends OutputStream
         boolean append = FD_ACCESS.getAppend(fd);
         long comp = Blocker.begin();
         try {
-            implWriteBytes(b, off, len, append);
+            writeBytes(b, off, len, append);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private void implWriteBytes(byte[] b, int off, int len, boolean append) throws IOException {
-        if (!useNio) {
-            writeBytes(b, off, len, append);
-        } else {
-            // 'append' is ignored; the channel is supposed to obey the mode in which the file was opened
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
-                do {
-                    channel.write(buffer);
-                } while (buffer.hasRemaining());
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                writeBytes(b, off, len, append);
-            }
-        }
-    }
-
     /**
      * Closes this file output stream and releases any system resources
      * associated with this stream. This file output stream may no longer
@@ -506,10 +414,6 @@ public class FileOutputStream extends OutputStream
             fc.close();
         }
 
-        if (externalChannelHolder != null) {
-            externalChannelHolder.close();
-        }
-
         fd.closeAll(new Closeable() {
             public void close() throws IOException {
                fd.close();
@@ -551,10 +455,6 @@ public class FileOutputStream extends OutputStream
      * @since 1.4
      */
     public FileChannel getChannel() {
-        if (externalChannelHolder != null) {
-            return externalChannelHolder.getInterruptibleChannel();
-        }
-
         FileChannel fc = this.channel;
         if (fc == null) {
             synchronized (this) {
@@ -582,12 +482,4 @@ public class FileOutputStream extends OutputStream
     static {
         initIDs();
     }
-
-    /**
-     * This method is called by JFR. See {@code FileOutputStreamInstrumentor.java}.
-     */
-    @SuppressWarnings("unused")
-    private boolean ioOverNioInThisThread() {
-        return IoOverNio.isAllowedInThisThread();
-    }
 }

src/java.base/share/classes/java/io/NioChannelCleanable.java

@@ -1,78 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.io;
-
-import jdk.internal.ref.CleanerFactory;
-import jdk.internal.ref.PhantomCleanable;
-
-import java.lang.ref.WeakReference;
-import java.nio.channels.FileChannel;
-
-/**
- * Cleanable for {@link FileInputStream}, {@link FileOutputStream} and {@link RandomAccessFile}
- * which is in use if {@link com.jetbrains.internal.IoOverNio#IS_ENABLED_IN_GENERAL} is true.
- * <p>
- * Implicitly, there MAY be used both this cleaner and {@link FileCleanable} for the same file descriptor,
- * when the channel is {@link sun.nio.ch.FileChannelImpl}.
- * However, this class is also able to close other channels.
- *
- * @see FileCleanable
- */
-final class NioChannelCleanable extends PhantomCleanable<Object> {
-    private WeakReference<FileChannel> channel = new WeakReference<>(null);
-
-    /**
-     * @param channelOwner The owner of a channel.
-     *                     It is supposed to be {@link FileInputStream}, {@link FileOutputStream} or {@link RandomAccessFile}.
-     */
-    NioChannelCleanable(Object channelOwner) {
-        super(channelOwner, CleanerFactory.cleaner());
-
-        assert channelOwner instanceof FileInputStream ||
-                channelOwner instanceof FileOutputStream ||
-                channelOwner instanceof RandomAccessFile
-                : channelOwner.getClass() + " is not an expected class";
-    }
-
-    /**
-     * The same as {@link FileCleanable#register} but for channels.
-     */
-    void setChannel(FileChannel channel) {
-        this.channel = new WeakReference<>(channel);
-    }
-
-    @Override
-    protected void performCleanup() {
-        var channel = this.channel.get();
-        if (channel != null) {
-            try {
-                channel.close();
-            } catch (IOException | RuntimeException ignored) {
-                // Ignored.
-            }
-        }
-    }
-}

src/java.base/share/classes/java/io/NoOpCleanable.java

@@ -1,48 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.io;
-
-import jdk.internal.ref.CleanerFactory;
-import jdk.internal.ref.PhantomCleanable;
-
-/**
- * An analog of {@link FileCleanable} that does nothing.
- * <p>
- * It exists only to fulfill an implicit contract that every {@link FileDescriptor}
- * from {@link RandomAccessFile} and classes like that
- * has a registered cleaner.
- * Some tests rely on this contract and fail without this class.
- */
-class NoOpCleanable extends PhantomCleanable<FileDescriptor> {
-    NoOpCleanable(FileDescriptor referent) {
-        super(referent, CleanerFactory.cleaner());
-    }
-
-    @Override
-    protected void performCleanup() {
-        // Nothing.
-    }
-}

src/java.base/share/classes/java/io/RandomAccessFile.java

@@ -25,38 +25,14 @@
 
 package java.io;
 
-import com.jetbrains.internal.IoOverNio;
+import java.nio.channels.FileChannel;
+
 import jdk.internal.access.JavaIORandomAccessFileAccess;
 import jdk.internal.access.SharedSecrets;
 import jdk.internal.misc.Blocker;
 import jdk.internal.util.ByteArray;
 import sun.nio.ch.FileChannelImpl;
 
-import java.nio.ByteBuffer;
-import java.nio.channels.FileChannel;
-import java.nio.file.Files;
-import java.nio.file.InvalidPathException;
-import java.nio.file.NoSuchFileException;
-import java.nio.file.Path;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.util.Objects;
-
-import java.nio.channels.NonWritableChannelException;
-import java.nio.file.FileSystem;
-import java.nio.file.Files;
-import java.nio.file.InvalidPathException;
-import java.nio.file.LinkOption;
-import java.nio.file.NoSuchFileException;
-import java.nio.file.OpenOption;
-import java.nio.file.Path;
-import java.nio.file.StandardOpenOption;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.nio.file.StandardOpenOption;
-import java.util.Arrays;
-import java.util.HashSet;
-
-import static com.jetbrains.internal.IoOverNio.DEBUG;
-
 
 /**
  * Instances of this class support both reading and writing to a
@@ -114,16 +90,6 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     private volatile FileChannel channel;
     private volatile boolean closed;
 
-    private final boolean useNio;
-
-    @SuppressWarnings({
-            "FieldCanBeLocal",
-            "this-escape",  // It immediately converts into a phantom reference.
-    })
-    private final NioChannelCleanable channelCleanable = new NioChannelCleanable(this);
-
-    private final ExternalChannelHolder externalChannelHolder;
-
     /**
      * Creates a random access file stream to read from, and optionally
      * to write to, a file with the specified name. A new
@@ -301,63 +267,11 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
         if (file.isInvalid()) {
             throw new FileNotFoundException("Invalid file path");
         }
+        fd = new FileDescriptor();
+        fd.attach(this);
         path = name;
-        FileSystem nioFs = IoOverNioFileSystem.acquireNioFs(path);
-        Path nioPath = null;
-        if (nioFs != null) {
-            try {
-                nioPath = nioFs.getPath(path);
-            } catch (InvalidPathException ignored) {
-                // Nothing.
-            }
-        }
-
-        // Two significant differences between the legacy java.io and java.nio.files:
-        // * java.nio.file allows to open directories as streams, java.io.FileInputStream doesn't.
-        // * java.nio.file doesn't work well with pseudo devices, i.e., `seek()` fails, while java.io works well.
-        boolean isRegularFile;
-        try {
-            isRegularFile = nioPath != null &&
-                    Files.readAttributes(nioPath, BasicFileAttributes.class, LinkOption.NOFOLLOW_LINKS).isRegularFile();
-        }
-        catch (NoSuchFileException ignored) {
-            isRegularFile = true;
-        }
-        catch (IOException ignored) {
-            isRegularFile = false;
-        }
-
-        useNio = nioPath != null && isRegularFile;
-        if (useNio) {
-            var bundle = IoOverNioFileSystem.initializeStreamUsingNio(
-                    this, nioFs, file, nioPath, optionsForChannel(imode), channelCleanable);
-            channel = bundle.channel();
-            fd = bundle.fd();
-            externalChannelHolder = bundle.externalChannelHolder();
-        } else {
-            fd = new FileDescriptor();
-            fd.attach(this);
-            open(name, imode);
-            FileCleanable.register(fd);   // open sets the fd, register the cleanup
-            externalChannelHolder = null;
-        }
-        if (DEBUG.writeTraces()) {
-            System.err.printf("Created a RandomAccessFile for %s%n", file);
-        }
-    }
-
-    private static HashSet<OpenOption> optionsForChannel(int imode) {
-        HashSet<OpenOption> options = new HashSet<>(6);
-        options.add(StandardOpenOption.READ);
-        if ((imode & O_RDONLY) == 0) {
-            options.add(StandardOpenOption.WRITE);
-            options.add(StandardOpenOption.CREATE);
-        }
-        if ((imode & O_SYNC) == O_SYNC) options.add(StandardOpenOption.SYNC);
-        if ((imode & O_DSYNC) == O_DSYNC) options.add(StandardOpenOption.DSYNC);
-        if ((imode & O_TEMPORARY) == O_TEMPORARY) options.add(StandardOpenOption.DELETE_ON_CLOSE);
-        IoOverNioOsSpecific.optionsForChannelInRandomAccessFile(options, imode);
-        return options;
+        open(name, imode);
+        FileCleanable.register(fd);   // open sets the fd, register the cleanup
     }
 
     /**
@@ -390,10 +304,6 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
      * @since 1.4
      */
     public final FileChannel getChannel() {
-        if (externalChannelHolder != null) {
-            return externalChannelHolder.getInterruptibleChannel();
-        }
-
         FileChannel fc = this.channel;
         if (fc == null) {
             synchronized (this) {
@@ -469,23 +379,12 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     public int read() throws IOException {
         long comp = Blocker.begin();
         try {
-            return implRead();
+            return read0();
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private int implRead() throws IOException {
-        if (!useNio) {
-            return read0();
-        } else {
-            ByteBuffer buffer = ByteBuffer.allocate(1);
-            int nRead = channel.read(buffer);
-            buffer.rewind();
-            return nRead == 1 ? (buffer.get() & 0xFF) : -1;
-        }
-    }
-
     private native int read0() throws IOException;
 
     /**
@@ -498,26 +397,12 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     private int readBytes(byte[] b, int off, int len) throws IOException {
         long comp = Blocker.begin();
         try {
-            return implReadBytes(b, off, len);
+            return readBytes0(b, off, len);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private int implReadBytes(byte[] b, int off, int len) throws IOException {
-        if (!useNio) {
-            return readBytes0(b, off, len);
-        } else {
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
-                return channel.read(buffer);
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                return readBytes0(b, off, len);
-            }
-        }
-    }
-
     private native int readBytes0(byte[] b, int off, int len) throws IOException;
 
     /**
@@ -546,17 +431,7 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
      *             {@code b.length - off}
      */
     public int read(byte[] b, int off, int len) throws IOException {
-        if (!useNio) {
-            return readBytes(b, off, len);
-        } else {
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
-                return channel.read(buffer);
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                return readBytes(b, off, len);
-            }
-        }
+        return readBytes(b, off, len);
     }
 
     /**
@@ -579,17 +454,7 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
      * @throws     NullPointerException If {@code b} is {@code null}.
      */
     public int read(byte[] b) throws IOException {
-        if (!useNio) {
-            return readBytes(b, 0, b.length);
-        } else {
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b);
-                return channel.read(buffer);
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                return readBytes(b, 0, b.length);
-            }
-        }
+        return readBytes(b, 0, b.length);
     }
 
     /**
@@ -685,29 +550,12 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     public void write(int b) throws IOException {
         long comp = Blocker.begin();
         try {
-            implWrite(b);
+            write0(b);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private void implWrite(int b) throws IOException {
-        if (!useNio) {
-            write0(b);
-        } else {
-            byte[] array = new byte[1];
-            array[0] = (byte) b;
-            ByteBuffer buffer = ByteBuffer.wrap(array);
-            do {
-                try {
-                    channel.write(buffer);
-                } catch (java.nio.channels.NonWritableChannelException err) {
-                    throw new IOException("Bad file descriptor", err);
-                }
-            } while (buffer.hasRemaining());
-        }
-    }
-
     private native void write0(int b) throws IOException;
 
     /**
@@ -721,32 +569,12 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     private void writeBytes(byte[] b, int off, int len) throws IOException {
         long comp = Blocker.begin();
         try {
-            implWriteBytes(b, off, len);
+            writeBytes0(b, off, len);
         } finally {
             Blocker.end(comp);
         }
     }
 
-    private void implWriteBytes(byte[] b, int off, int len) throws IOException {
-        if (!useNio) {
-            writeBytes0(b, off, len);
-        } else {
-            try {
-                ByteBuffer buffer = ByteBuffer.wrap(b, off, len);
-                do {
-                    try {
-                        channel.write(buffer);
-                    } catch (java.nio.channels.NonWritableChannelException err) {
-                        throw new IOException("Bad file descriptor", err);
-                    }
-                } while (buffer.hasRemaining());
-            } catch (OutOfMemoryError e) {
-                // May fail to allocate direct buffer memory due to small -XX:MaxDirectMemorySize
-                writeBytes0(b, off, len);
-            }
-        }
-    }
-
     private native void writeBytes0(byte[] b, int off, int len) throws IOException;
 
     /**
@@ -783,15 +611,7 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
      *             at which the next read or write occurs.
      * @throws     IOException  if an I/O error occurs.
      */
-    public long getFilePointer() throws IOException {
-        if (!useNio) {
-            return getFilePointer0();
-        } else {
-            return channel.position();
-        }
-    }
-
-    private native long getFilePointer0() throws IOException;
+    public native long getFilePointer() throws IOException;
 
     /**
      * Sets the file-pointer offset, measured from the beginning of this
@@ -813,11 +633,7 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
         }
         long comp = Blocker.begin();
         try {
-            if (!useNio) {
-                seek0(pos);
-            } else {
-                channel.position(pos);
-            }
+            seek0(pos);
         } finally {
             Blocker.end(comp);
         }
@@ -834,11 +650,7 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     public long length() throws IOException {
         long comp = Blocker.begin();
         try {
-            if (!useNio) {
-                return length0();
-            } else {
-                return channel.size();
-            }
+            return length0();
         } finally {
             Blocker.end(comp);
         }
@@ -868,39 +680,7 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
     public void setLength(long newLength) throws IOException {
         long comp = Blocker.begin();
         try {
-            if (!useNio) {
-                setLength0(newLength);
-            } else {
-                try {
-                    long oldSize = channel.size();
-                    if (newLength < oldSize) {
-                        channel.truncate(newLength);
-                    } else {
-                        long position = channel.position();
-                        channel.position(channel.size());
-                        try {
-                            byte[] buf = new byte[1 << 14];
-                            Arrays.fill(buf, (byte) 0);
-                            long remains = newLength - oldSize;
-                            while (remains > 0) {
-                                ByteBuffer buffer = ByteBuffer.wrap(buf);
-                                int length = (int) Math.min(remains, buf.length);
-                                buffer.limit(length);
-                                int written = channel.write(buffer);
-                                remains -= written;
-                            }
-                        } finally {
-                            try {
-                                channel.position(position);
-                            } catch (IOException ignored) {
-                                // Nothing.
-                            }
-                        }
-                    }
-                } catch (NonWritableChannelException err) {
-                    throw new IOException("setLength failed", err);
-                }
-            }
+            setLength0(newLength);
         } finally {
             Blocker.end(comp);
         }
@@ -944,10 +724,6 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
             fc.close();
         }
 
-        if (externalChannelHolder != null) {
-            externalChannelHolder.close();
-        }
-
         fd.closeAll(new Closeable() {
             public void close() throws IOException {
                fd.close();
@@ -1458,12 +1234,4 @@ public class RandomAccessFile implements DataOutput, DataInput, Closeable {
             }
         });
     }
-
-    /**
-     * This method is called by JFR. See {@code RandomAccessFileInstrumentor.java}.
-     */
-    @SuppressWarnings("unused")
-    private boolean ioOverNioInThisThread() {
-        return IoOverNio.isAllowedInThisThread();
-    }
 }

src/java.base/share/classes/java/nio/file/FileSystems.java

@@ -36,7 +36,6 @@ import java.util.Map;
 import java.util.ServiceConfigurationError;
 import java.util.ServiceLoader;
 
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.loader.ClassLoaders;
 import jdk.internal.misc.VM;
 import sun.nio.fs.DefaultFileSystemProvider;
@@ -96,14 +95,7 @@ public final class FileSystems {
         static final FileSystem defaultFileSystem = defaultFileSystem();
 
         // returns default file system
-        @SuppressWarnings("try")
         private static FileSystem defaultFileSystem() {
-            try (var ignored = IoOverNio.disableInThisThread()) {
-                return defaultFileSystem0();
-            }
-        }
-
-        private static FileSystem defaultFileSystem0() {
             // load default provider
             @SuppressWarnings("removal")
             FileSystemProvider provider = AccessController

src/java.base/share/classes/java/security/Security.java

@@ -31,7 +31,6 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.io.*;
 import java.net.URL;
 
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.access.JavaSecurityPropertiesAccess;
 import jdk.internal.event.EventHelper;
 import jdk.internal.event.SecurityPropertyModificationEvent;
@@ -94,14 +93,7 @@ public final class Security {
         });
     }
 
-    @SuppressWarnings("try")
     private static void initialize() {
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            initialize0();
-        }
-    }
-
-    private static void initialize0() {
         props = new Properties();
         boolean overrideAll = false;
 
@@ -131,6 +123,7 @@ public final class Security {
                     props.getProperty(key));
             }
         }
+
     }
 
     private static boolean loadProps(File masterFile, String extraPropFile, boolean overrideAll) {

src/java.base/share/classes/jdk/internal/loader/BootLoader.java

@@ -41,7 +41,6 @@ import java.util.jar.JarInputStream;
 import java.util.jar.Manifest;
 import java.util.stream.Stream;
 
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.access.JavaLangAccess;
 import jdk.internal.access.SharedSecrets;
 import jdk.internal.module.Modules;
@@ -144,19 +143,17 @@ public class BootLoader {
     /**
      * Loads a native library from the system library path.
      */
-    @SuppressWarnings({"try", "removal"})
+    @SuppressWarnings("removal")
     public static void loadLibrary(String name) {
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            if (System.getSecurityManager() == null) {
-                BootLoader.getNativeLibraries().loadLibrary(name);
-            } else {
-                AccessController.doPrivileged(new java.security.PrivilegedAction<>() {
-                    public Void run() {
-                        BootLoader.getNativeLibraries().loadLibrary(name);
-                        return null;
-                    }
-                });
-            }
+        if (System.getSecurityManager() == null) {
+            BootLoader.getNativeLibraries().loadLibrary(name);
+        } else {
+            AccessController.doPrivileged(new java.security.PrivilegedAction<>() {
+                public Void run() {
+                    BootLoader.getNativeLibraries().loadLibrary(name);
+                    return null;
+                }
+            });
         }
     }
 

src/java.base/share/classes/jdk/internal/loader/BuiltinClassLoader.java

@@ -57,7 +57,6 @@ import java.util.jar.Attributes;
 import java.util.jar.Manifest;
 import java.util.stream.Stream;
 
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.access.SharedSecrets;
 import jdk.internal.misc.VM;
 import jdk.internal.module.ModulePatcher.PatchedModuleReader;
@@ -736,15 +735,13 @@ public class BuiltinClassLoader
      *
      * @return the resulting Class or {@code null} if not found
      */
-    @SuppressWarnings({"removal", "try"})
+    @SuppressWarnings("removal")
     private Class<?> findClassInModuleOrNull(LoadedModule loadedModule, String cn) {
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            if (System.getSecurityManager() == null) {
-                return defineClass(cn, loadedModule);
-            } else {
-                PrivilegedAction<Class<?>> pa = () -> defineClass(cn, loadedModule);
-                return AccessController.doPrivileged(pa);
-            }
+        if (System.getSecurityManager() == null) {
+            return defineClass(cn, loadedModule);
+        } else {
+            PrivilegedAction<Class<?>> pa = () -> defineClass(cn, loadedModule);
+            return AccessController.doPrivileged(pa);
         }
     }
 
@@ -753,37 +750,35 @@ public class BuiltinClassLoader
      *
      * @return the resulting Class or {@code null} if not found
      */
-    @SuppressWarnings({"removal", "try"})
+    @SuppressWarnings("removal")
     private Class<?> findClassOnClassPathOrNull(String cn) {
         String path = cn.replace('.', '/').concat(".class");
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            if (System.getSecurityManager() == null) {
-                Resource res = ucp.getResource(path, false);
-                if (res != null) {
-                    try {
-                        return defineClass(cn, res);
-                    } catch (IOException ioe) {
-                        // TBD on how I/O errors should be propagated
-                    }
+        if (System.getSecurityManager() == null) {
+            Resource res = ucp.getResource(path, false);
+            if (res != null) {
+                try {
+                    return defineClass(cn, res);
+                } catch (IOException ioe) {
+                    // TBD on how I/O errors should be propagated
                 }
-                return null;
-            } else {
-                // avoid use of lambda here
-                PrivilegedAction<Class<?>> pa = new PrivilegedAction<>() {
-                    public Class<?> run() {
-                        Resource res = ucp.getResource(path, false);
-                        if (res != null) {
-                            try {
-                                return defineClass(cn, res);
-                            } catch (IOException ioe) {
-                                // TBD on how I/O errors should be propagated
-                            }
-                        }
-                        return null;
-                    }
-                };
-                return AccessController.doPrivileged(pa);
             }
+            return null;
+        } else {
+            // avoid use of lambda here
+            PrivilegedAction<Class<?>> pa = new PrivilegedAction<>() {
+                public Class<?> run() {
+                    Resource res = ucp.getResource(path, false);
+                    if (res != null) {
+                        try {
+                            return defineClass(cn, res);
+                        } catch (IOException ioe) {
+                            // TBD on how I/O errors should be propagated
+                        }
+                    }
+                    return null;
+                }
+            };
+            return AccessController.doPrivileged(pa);
         }
     }
 

src/java.base/share/classes/jdk/internal/loader/NativeLibraries.java

@@ -24,7 +24,6 @@
  */
 package jdk.internal.loader;
 
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.misc.VM;
 import jdk.internal.ref.CleanerFactory;
 import jdk.internal.util.StaticProperty;
@@ -33,8 +32,6 @@ import java.io.File;
 import java.io.IOException;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
 import java.util.ArrayDeque;
 import java.util.Deque;
 import java.util.function.BiFunction;
@@ -117,16 +114,15 @@ public final class NativeLibraries {
      * @param file the path of the native library
      * @throws UnsatisfiedLinkError if any error in loading the native library
      */
-    @SuppressWarnings({"try", "removal"})
+    @SuppressWarnings("removal")
     public NativeLibrary loadLibrary(Class<?> fromClass, File file) {
         // Check to see if we're attempting to access a static library
         String name = findBuiltinLib(file.getName());
         boolean isBuiltin = (name != null);
         if (!isBuiltin) {
             name = AccessController.doPrivileged(new PrivilegedAction<>() {
-                    @SuppressWarnings("try")
                     public String run() {
-                        try(var ignored = IoOverNio.disableInThisThread()) {
+                        try {
                             if (loadLibraryOnlyIfPresent && !file.exists()) {
                                 return null;
                             }
@@ -342,12 +338,9 @@ public final class NativeLibraries {
             // If the file exists but fails to load, UnsatisfiedLinkException thrown by the VM
             // will include the error message from dlopen to provide diagnostic information
             return AccessController.doPrivileged(new PrivilegedAction<>() {
-                @SuppressWarnings("try")
                 public Boolean run() {
-                    try (var ignored = IoOverNio.disableInThisThread()) {
-                        File file = new File(name);
-                        return file.exists();
-                    }
+                    File file = new File(name);
+                    return file.exists();
                 }
             });
         }

src/java.base/share/classes/sun/nio/ch/FileChannelImpl.java

@@ -47,7 +47,6 @@ import java.nio.channels.SelectableChannel;
 import java.nio.channels.WritableByteChannel;
 import java.util.Objects;
 
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.access.JavaIOFileDescriptorAccess;
 import jdk.internal.access.SharedSecrets;
 import jdk.internal.foreign.AbstractMemorySegmentImpl;
@@ -130,9 +129,6 @@ public class FileChannelImpl
         this.readable = readable;
         this.writable = writable;
         this.direct = direct;
-        if (parent == null) {
-            parent = IoOverNio.PARENT_FOR_FILE_CHANNEL_IMPL.get();
-        }
         this.parent = parent;
         if (direct) {
             assert path != null;
@@ -168,24 +164,6 @@ public class FileChannelImpl
         uninterruptible = true;
     }
 
-    public void setInterruptible() {
-        uninterruptible = false;
-    }
-
-    @Override
-    public FileChannelImpl clone() {
-        FileChannelImpl result = new FileChannelImpl(fd, path, readable, writable, direct, parent);
-        result.uninterruptible = uninterruptible;
-        if (!isOpen()) {
-            try {
-                result.close();
-            } catch (IOException ignored) {
-                // Ignored.
-            }
-        }
-        return result;
-    }
-
     private void beginBlocking() {
         if (!uninterruptible) begin();
     }
@@ -1581,8 +1559,4 @@ public class FileChannelImpl
         assert fileLockTable != null;
         fileLockTable.remove(fli);
     }
-
-    public FileDescriptor getFD() {
-        return fd;
-    }
 }

src/java.base/share/classes/sun/security/provider/PolicyFile.java

@@ -41,8 +41,6 @@ import javax.security.auth.x500.X500Principal;
 import java.net.SocketPermission;
 import java.net.NetPermission;
 import java.util.concurrent.ConcurrentHashMap;
-
-import com.jetbrains.internal.IoOverNio;
 import jdk.internal.access.JavaSecurityAccess;
 import jdk.internal.access.SharedSecrets;
 import jdk.internal.util.StaticProperty;
@@ -310,14 +308,7 @@ public class PolicyFile extends java.security.Policy {
      * See the class description for details on the algorithm used to
      * initialize the Policy object.
      */
-    @SuppressWarnings("try")
     private void init(URL url) {
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            init0(url);
-        }
-    }
-
-    private void init0(URL url) {
         // Properties are set once for each init(); ignore changes
         // between diff invocations of initPolicyFile(policy, url, info).
         String numCacheStr =
@@ -1102,16 +1093,8 @@ public class PolicyFile extends java.security.Policy {
      *
      * @return the set of Permissions according to the policy.
      */
-    @SuppressWarnings("try")
     private PermissionCollection getPermissions(Permissions perms,
                                         ProtectionDomain pd ) {
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            return getPermissions0(perms, pd);
-        }
-    }
-
-    private Permissions getPermissions0(Permissions perms,
-                                        ProtectionDomain pd) {
         if (debug != null) {
             debug.println("getPermissions:\n\t" + printPD(pd));
         }

src/java.base/share/native/libjava/RandomAccessFile.c

@@ -90,7 +90,7 @@ Java_java_io_RandomAccessFile_writeBytes0(JNIEnv *env,
 }
 
 JNIEXPORT jlong JNICALL
-Java_java_io_RandomAccessFile_getFilePointer0(JNIEnv *env, jobject this) {
+Java_java_io_RandomAccessFile_getFilePointer(JNIEnv *env, jobject this) {
     FD fd;
     jlong ret;
 

src/java.base/unix/classes/java/io/IoOverNioOsSpecific.java

@@ -1,35 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.io;
-
-import java.nio.file.OpenOption;
-import java.util.Set;
-
-class IoOverNioOsSpecific {
-    static void optionsForChannelInRandomAccessFile(Set<OpenOption> options, int imode) {
-        // Nothing.
-    }
-}

src/java.base/unix/classes/sun/nio/fs/UnixChannelFactory.java

@@ -199,9 +199,8 @@ class UnixChannelFactory {
             if (flags.createNew) {
                 byte[] pathForSysCall = path.getByteArrayForSysCalls();
 
-                // throw exception if file name is "." or "" to avoid confusing error
-                if ((pathForSysCall.length == 0) ||
-                    (pathForSysCall[pathForSysCall.length-1] == '.') &&
+                // throw exception if file name is "." to avoid confusing error
+                if ((pathForSysCall[pathForSysCall.length-1] == '.') &&
                     (pathForSysCall.length == 1 ||
                     (pathForSysCall[pathForSysCall.length-2] == '/')))
                 {

src/java.base/unix/classes/sun/nio/fs/UnixException.java

@@ -25,8 +25,6 @@
 
 package sun.nio.fs;
 
-import com.jetbrains.internal.IoToNioErrorMessageHolder;
-
 import java.nio.file.*;
 import java.io.IOException;
 
@@ -106,7 +104,6 @@ class UnixException extends Exception {
         String a = (file == null) ? null : file.getPathForExceptionMessage();
         String b = (other == null) ? null : other.getPathForExceptionMessage();
         IOException x = translateToIOException(a, b);
-        IoToNioErrorMessageHolder.addMessage(x, errorString());
         throw x;
     }
 
@@ -115,8 +112,6 @@ class UnixException extends Exception {
     }
 
     IOException asIOException(UnixPath file) {
-        IOException x = translateToIOException(file.getPathForExceptionMessage(), null);
-        IoToNioErrorMessageHolder.addMessage(x, errorString());
-        return x;
+        return translateToIOException(file.getPathForExceptionMessage(), null);
     }
 }

src/java.base/unix/classes/sun/security/provider/NativePRNG.java

@@ -30,7 +30,6 @@ import java.net.*;
 import java.security.*;
 import java.util.Arrays;
 
-import com.jetbrains.internal.IoOverNio;
 import sun.security.util.Debug;
 
 /**
@@ -127,15 +126,8 @@ public final class NativePRNG extends SecureRandomSpi {
     /**
      * Create a RandomIO object for all I/O of this Variant type.
      */
-    @SuppressWarnings("try")
-    private static RandomIO initIO(final Variant v) {
-        try (var ignored = IoOverNio.disableInThisThread()) {
-            return initIOImpl(v);
-        }
-    }
-
     @SuppressWarnings("removal")
-    private static RandomIO initIOImpl(final Variant v) {
+    private static RandomIO initIO(final Variant v) {
         return AccessController.doPrivileged(
             new PrivilegedAction<>() {
                 @Override

src/java.base/windows/classes/java/io/IoOverNioOsSpecific.java

@@ -1,35 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.io;
-
-import java.nio.file.OpenOption;
-import java.util.Set;
-
-class IoOverNioOsSpecific {
-    static void optionsForChannelInRandomAccessFile(Set<OpenOption> options, int imode) {
-        options.add(JbExtendedOpenOptions.NOSHARE_DELETE);
-    }
-}

src/java.base/windows/classes/java/io/JbExtendedOpenOptions.java

@@ -1,44 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package java.io;
-
-import sun.nio.fs.ExtendedOptions;
-
-import java.nio.file.OpenOption;
-
-enum JbExtendedOpenOptions implements OpenOption {
-    /**
-     * The same as {@link com.sun.nio.file.ExtendedOpenOption#NOSHARE_DELETE}.
-     * <p>
-     * The original option can't be used because it resides in the module {@code jdk.unsupported},
-     * which depends on this module.
-     */
-    NOSHARE_DELETE(ExtendedOptions.NOSHARE_DELETE);
-
-    JbExtendedOpenOptions(ExtendedOptions.InternalOption<Void> extendedOption) {
-        extendedOption.register(this);
-    }
-}

src/java.base/windows/classes/sun/nio/fs/WindowsException.java

@@ -25,8 +25,6 @@
 
 package sun.nio.fs;
 
-import com.jetbrains.internal.IoToNioErrorMessageHolder;
-
 import java.nio.file.*;
 import java.io.IOException;
 
@@ -96,7 +94,6 @@ class WindowsException extends Exception {
 
     void rethrowAsIOException(String file) throws IOException {
         IOException x = translateToIOException(file, null);
-        IoToNioErrorMessageHolder.addMessage(x, errorString());
         throw x;
     }
 
@@ -104,7 +101,6 @@ class WindowsException extends Exception {
         String a = (file == null) ? null : file.getPathForExceptionMessage();
         String b = (other == null) ? null : other.getPathForExceptionMessage();
         IOException x = translateToIOException(a, b);
-        IoToNioErrorMessageHolder.addMessage(x, errorString());
         throw x;
     }
 

src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/FileInputStreamInstrumentor.java

@@ -45,7 +45,7 @@ final class FileInputStreamInstrumentor {
     @JIInstrumentationMethod
     public int read() throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_READ;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             return read();
         }
         int result = 0;
@@ -72,7 +72,7 @@ final class FileInputStreamInstrumentor {
     @JIInstrumentationMethod
     public int read(byte b[]) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_READ;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             return read(b);
         }
         int bytesRead = 0;
@@ -96,7 +96,7 @@ final class FileInputStreamInstrumentor {
     @JIInstrumentationMethod
     public int read(byte b[], int off, int len) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_READ;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             return read(b, off, len);
         }
         int bytesRead = 0;
@@ -116,8 +116,4 @@ final class FileInputStreamInstrumentor {
         }
         return bytesRead;
     }
-
-    private boolean ioOverNioInThisThread() {
-        throw new Error("This code should never be called. JFR should have replaced the call to this code with another method.");
-    }
 }

src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/FileOutputStreamInstrumentor.java

@@ -45,7 +45,7 @@ final class FileOutputStreamInstrumentor {
     @JIInstrumentationMethod
     public void write(int b) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_WRITE;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             write(b);
             return;
         }
@@ -66,7 +66,7 @@ final class FileOutputStreamInstrumentor {
     @JIInstrumentationMethod
     public void write(byte b[]) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_WRITE;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             write(b);
             return;
         }
@@ -87,7 +87,7 @@ final class FileOutputStreamInstrumentor {
     @JIInstrumentationMethod
     public void write(byte b[], int off, int len) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_WRITE;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             write(b, off, len);
             return;
         }
@@ -104,9 +104,4 @@ final class FileOutputStreamInstrumentor {
             }
         }
     }
-
-    @SuppressWarnings("unused")
-    private boolean ioOverNioInThisThread() {
-        throw new Error("This code should never be called. JFR should have replaced the call to this code with another method.");
-    }
 }

src/jdk.jfr/share/classes/jdk/jfr/internal/instrument/RandomAccessFileInstrumentor.java

@@ -46,7 +46,7 @@ final class RandomAccessFileInstrumentor {
     @JIInstrumentationMethod
     public int read() throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_READ;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             return read();
         }
         int result = 0;
@@ -73,7 +73,7 @@ final class RandomAccessFileInstrumentor {
     @JIInstrumentationMethod
     public int read(byte b[]) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_READ;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             return read(b);
         }
         int bytesRead = 0;
@@ -97,7 +97,7 @@ final class RandomAccessFileInstrumentor {
     @JIInstrumentationMethod
     public int read(byte b[], int off, int len) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_READ;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             return read(b, off, len);
         }
         int bytesRead = 0;
@@ -121,7 +121,7 @@ final class RandomAccessFileInstrumentor {
     @JIInstrumentationMethod
     public void write(int b) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_WRITE;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             write(b);
             return;
         }
@@ -142,7 +142,7 @@ final class RandomAccessFileInstrumentor {
     @JIInstrumentationMethod
     public void write(byte b[]) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_WRITE;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             write(b);
             return;
         }
@@ -163,7 +163,7 @@ final class RandomAccessFileInstrumentor {
     @JIInstrumentationMethod
     public void write(byte b[], int off, int len) throws IOException {
         EventConfiguration eventConfiguration = EventConfigurations.FILE_WRITE;
-        if (!eventConfiguration.isEnabled() || ioOverNioInThisThread()) {
+        if (!eventConfiguration.isEnabled()) {
             write(b, off, len);
             return;
         }
@@ -180,8 +180,4 @@ final class RandomAccessFileInstrumentor {
             }
         }
     }
-
-    private boolean ioOverNioInThisThread() {
-        throw new Error("This code should never be called. JFR should have replaced the call to this code with another method.");
-    }
 }

test/jdk/TEST.groups

@@ -815,6 +815,7 @@ jdk_awt_wayland = \
     -java/awt/Clipboard/LostOwnershipChainTest/SystemClipboardTest.java \
     -java/awt/ColorClass/AlphaColorTest.java \
     -java/awt/Component/7097771 \
+    -java/awt/Component/ComponentEventTest.java \
     -java/awt/Component/ComponentRedrawnTest.java \
     -java/awt/Component/DimensionEncapsulation \
     -java/awt/Component/F10TopToplevel \
@@ -945,6 +946,7 @@ jdk_awt_wayland = \
     -java/awt/Focus/InputVerifierTest3 \
     -java/awt/Focus/KeyEventForBadFocusOwnerTest \
     -java/awt/Focus/LabelScrollBarFocus.java \
+    -java/awt/MenuShortcut/ActionCommandTest.java \
     -java/awt/Focus/ModalBlockedStealsFocusTest \
     -java/awt/Focus/ModalDialogActivationTest \
     -java/awt/Focus/ModalDialogInFocusEventTest.java \
@@ -1094,6 +1096,7 @@ jdk_swing_wayland= \
     -com/sun/java/swing/plaf/gtk/TestFileChooserCtrlASelection.java \
     -com/sun/java/swing/plaf/gtk/TestFileChooserSingleDirectorySelection.java \
     -javax/swing/AbstractButton/6711682/bug6711682.java \
+    -javax/swing/AbstractDocument/bug4549069.java \
     -javax/swing/Action/8133039/bug8133039.java \
     -javax/swing/Box/TestBoxFiller.java \
     -javax/swing/JButton/bug4234034.java \
@@ -1287,6 +1290,7 @@ jdk_swing_wayland= \
     -javax/swing/JWindow/ShapedAndTranslucentWindows/PerPixelTranslucentCanvas.java \
     -javax/swing/JWindow/ShapedAndTranslucentWindows/PerPixelTranslucentGradient.java \
     -javax/swing/KeyboardManager/8013370/Test8013370.java \
+    -javax/swing/KeyboardManager/bug4345798.java \
     -javax/swing/LookAndFeel/8145547/DemandGTK.java \
     -javax/swing/LookAndFeel/8146276/NimbusGlueTest.java \
     -javax/swing/LookAndFeel/SystemLookAndFeel/SystemLookAndFeelTest.java \
@@ -1342,3 +1346,27 @@ jdk_swing_wayland= \
 jdk_desktop_wayland = \
     :jdk_awt_wayland \
     :jdk_swing_wayland
+
+# tests to be executed against Legacy Binary builds
+jdk_awt_legacy_libc= \
+    :jdk_awt \
+    -jb/java/awt/wayland/VulkanMaskFillTest.java
+
+jdk_swing_legacy_libc= \
+    :jdk_swing
+
+jdk_desktop_legacy_libc = \
+    :jdk_desktop \
+    -jb/java/awt/wayland/VulkanMaskFillTest.java
+
+# Wayland tests to be executed against Legacy Binary builds with -Dawt.toolkit.name=WLToolkit
+jdk_awt_wayland_legacy_libc= \
+    :jdk_awt_wayland \
+    -jb/java/awt/wayland/VulkanMaskFillTest.java
+
+jdk_swing_wayland_legacy_libc= \
+    :jdk_swing_wayland
+
+jdk_desktop_wayland_legacy_libc = \
+    :jdk_awt_wayland_legacy_libc \
+    :jdk_swing_wayland_legacy_libc

test/jdk/java/io/File/CheckPermission.java

@@ -25,7 +25,7 @@
  * @bug 8017212
  * @summary Examine methods in File.java that access the file system do the
  *          right permission check when a security manager exists.
- * @run main/othervm -Djava.security.manager=allow -Djbr.java.io.use.nio=false CheckPermission
+ * @run main/othervm -Djava.security.manager=allow CheckPermission
  * @author Dan Xu
  */
 

test/jdk/java/nio/Buffer/LimitDirectMemory.java

@@ -29,24 +29,24 @@
  * @library /test/lib
  *
  * @summary Test: memory is properly limited using multiple buffers
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=10 LimitDirectMemory true 10 1
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=1k LimitDirectMemory true 1k 100
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=10m LimitDirectMemory true 10m 10m
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=10 LimitDirectMemory true 10 1
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=1k LimitDirectMemory true 1k 100
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=10m LimitDirectMemory true 10m 10m
  *
  * @summary Test: We can increase the amount of available memory
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=65M LimitDirectMemory false 64M 65M
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=65M LimitDirectMemory false 64M 65M
  *
  * @summary Test: Exactly the default amount of memory is available
  * @run main/othervm LimitDirectMemory false 10 1
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -Xmx64m LimitDirectMemory false 0 DEFAULT
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -Xmx64m LimitDirectMemory true 0 DEFAULT+1
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -Xmx64m LimitDirectMemory false 0 DEFAULT
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -Xmx64m LimitDirectMemory true 0 DEFAULT+1
  *
  * @summary Test: We should be able to eliminate direct memory allocation entirely
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=0 LimitDirectMemory true 0 1
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -XX:MaxDirectMemorySize=0 LimitDirectMemory true 0 1
  *
  * @summary Test: Setting the system property should not work so we should be able
  *                to allocate the default amount
- * @run main/othervm -Djbr.java.io.use.nio=false -Djava.util.zip.use.nio.for.zip.file.access=false -Dsun.nio.MaxDirectMemorySize=1K -Xmx64m
+ * @run main/othervm -Djava.util.zip.use.nio.for.zip.file.access=false -Dsun.nio.MaxDirectMemorySize=1K -Xmx64m
  *                   LimitDirectMemory false DEFAULT-1 DEFAULT/2
  */
 

test/jdk/java/nio/file/Files/Misc.java

@@ -34,14 +34,12 @@ import java.io.File;
 import java.nio.file.FileAlreadyExistsException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.StandardOpenOption;
 import java.nio.file.attribute.AclEntry;
 import java.nio.file.attribute.AclEntryPermission;
 import java.nio.file.attribute.AclEntryType;
 import java.nio.file.attribute.AclFileAttributeView;
 import java.nio.file.attribute.DosFileAttributeView;
 import java.nio.file.attribute.UserPrincipal;
-import java.util.EnumSet;
 import java.util.List;
 import jdk.test.lib.Platform;
 
@@ -57,7 +55,6 @@ public class Misc {
             testIsSameFile(dir);
             testFileTypeMethods(dir);
             testAccessMethods(dir);
-            testEmptyPathForByteStream();
         } finally {
              TestUtil.removeAll(dir);
         }
@@ -363,18 +360,6 @@ public class Misc {
         }
     }
 
-    static void testEmptyPathForByteStream() throws IOException {
-        Path emptyPath = Path.of("");
-        try {
-            emptyPath.getFileSystem().provider()
-                    .newByteChannel(emptyPath, EnumSet.of(StandardOpenOption.WRITE, StandardOpenOption.CREATE_NEW))
-                    .close();
-            throw new RuntimeException("FileAlreadyExistsException was not thrown");
-        } catch (FileAlreadyExistsException ignored) {
-            // The expected behavior.
-        }
-    }
-
     static void assertTrue(boolean okay) {
         if (!okay)
             throw new RuntimeException("Assertion Failed");

test/jdk/java/util/logging/LogManager/Configuration/rootLoggerHandlers/BadRootLoggerHandlers.java

@@ -45,14 +45,14 @@ import java.util.stream.Stream;
  * @test
  * @bug 8191033
  * @build custom.DotHandler custom.Handler
- * @run main/othervm -Djbr.java.io.use.nio=false -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers CUSTOM
- * @run main/othervm -Djbr.java.io.use.nio=false -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers DEFAULT
- * @run main/othervm -Djbr.java.io.use.nio=false -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers CUSTOM
- * @run main/othervm -Djbr.java.io.use.nio=false -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers DEFAULT
- * @run main/othervm/java.security.policy==test.policy -Djbr.java.io.use.nio=false -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers CUSTOM
- * @run main/othervm/java.security.policy==test.policy  -Djbr.java.io.use.nio=false -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers DEFAULT
- * @run main/othervm/java.security.policy==test.policy  -Djbr.java.io.use.nio=false -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers CUSTOM
- * @run main/othervm/java.security.policy==test.policy  -Djbr.java.io.use.nio=false -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers DEFAULT
+ * @run main/othervm -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers CUSTOM
+ * @run main/othervm -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers DEFAULT
+ * @run main/othervm -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers CUSTOM
+ * @run main/othervm -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers DEFAULT
+ * @run main/othervm/java.security.policy==test.policy -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers CUSTOM
+ * @run main/othervm/java.security.policy==test.policy  -Dlogging.properties=badlogging.properties -Dclz=1custom.DotHandler BadRootLoggerHandlers DEFAULT
+ * @run main/othervm/java.security.policy==test.policy  -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers CUSTOM
+ * @run main/othervm/java.security.policy==test.policy  -Dlogging.properties=badglobal.properties -Dclz=1custom.GlobalHandler BadRootLoggerHandlers DEFAULT
  * @author danielfuchs
  */
 public class BadRootLoggerHandlers {

test/jdk/java/util/logging/LogManager/Configuration/rootLoggerHandlers/test.policy

@@ -10,8 +10,4 @@ grant {
     permission java.lang.RuntimePermission "setIO";
     permission java.lang.RuntimePermission "shutdownHooks";
     permission java.lang.RuntimePermission "setContextClassLoader";
-
-    // JBR-7700
-    permission java.lang.RuntimePermission "accessUserInformation";
-    permission java.io.FilePermission "read";
 };

test/jdk/jb/build/VerifyDependencies.java

@@ -30,14 +30,18 @@ import java.io.InputStreamReader;
 /**
  * @test
  * @summary VerifyDependencies checks readability verifies that a Linux shared
- *          library has no dependency on symbols from glibc version higher than 2.28
+ *          library has no dependency on symbols from glibc version higher than <code>expectedVersion</code>
  * @run main VerifyDependencies
  * @requires (os.family == "linux")
  */
 
 public class VerifyDependencies {
 
-    static final public String EXPECTED_VERSION = "2.28";
+    static final public String EXPECTED_VERSION_LEGACY = "2.17";
+    static final public String EXPECTED_VERSION_VULKAN = "2.28";
+
+    static String expectedVersion;
+
     public static void verifyLibrary(String libraryPath) throws IOException {
         Process process;
         BufferedReader reader;
@@ -52,12 +56,12 @@ public class VerifyDependencies {
             System.out.println(line);
             if (line.contains("GLIBC_")) {
                 String version = extractVersion(line);
-                if (compareVersions(version, EXPECTED_VERSION) > 0) {
+                if (compareVersions(version, expectedVersion) > 0) {
                     throw new RuntimeException(libraryPath + " has a dependency on glibc version " + version);
                 }
             }
         }
-        System.out.println(libraryPath + " has no dependency on glibc version higher than " + EXPECTED_VERSION);
+        System.out.println(libraryPath + " has no dependency on glibc version higher than " + expectedVersion);
     }
 
     private static String extractVersion(String line) {
@@ -125,6 +129,12 @@ public class VerifyDependencies {
 
     public static void main(String[] args) throws IOException {
         String javaHome = System.getProperty("java.home");
+
+        String vendorVersion = System.getProperty("java.vendor.version");
+        expectedVersion = vendorVersion.substring(Math.max(vendorVersion.length() - 3, 0)).compareTo("-lb") == 0
+                ? EXPECTED_VERSION_LEGACY : EXPECTED_VERSION_VULKAN;
+        System.out.println("supporting glibc version is not less than " + expectedVersion);
+
         findInDirectory(javaHome + "/bin", false);
         findInDirectory(javaHome + "/lib", true);
     }

test/jdk/jb/java/io/IoOverNio/ErrorMessageTest.java

@@ -1,282 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @summary java.io.File uses java.nio.file inside, special test for error messages consistency.
- * @library testNio
- * @run junit/othervm
- *      -Djava.nio.file.spi.DefaultFileSystemProvider=testNio.ManglingFileSystemProvider
- *      -Djbr.java.io.use.nio=true
- *      ErrorMessageTest
- */
-
-import org.junit.After;
-import org.junit.Assume;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-import testNio.ManglingFileSystemProvider;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.RandomAccessFile;
-import java.nio.file.AccessDeniedException;
-import java.nio.file.Files;
-import java.util.Objects;
-
-import static org.junit.Assert.fail;
-
-@SuppressWarnings("ResultOfMethodCallIgnored")
-public class ErrorMessageTest {
-
-    @Rule
-    public TemporaryFolder temporaryFolder = new TemporaryFolder();
-
-    @BeforeClass
-    public static void checkSystemProperties() {
-        Objects.requireNonNull(System.getProperty("java.nio.file.spi.DefaultFileSystemProvider"));
-    }
-
-    @Before
-    @After
-    public void resetFs() {
-        ManglingFileSystemProvider.resetTricks();
-    }
-
-    public static final boolean IS_WINDOWS = System.getProperty("os.name").toLowerCase().startsWith("win");
-    public static final boolean IS_MAC = System.getProperty("os.name").toLowerCase().startsWith("mac");
-
-    @Test
-    public void noSuchFileOrDirectory() throws Exception {
-        File nonExistentEntity = temporaryFolder.newFile();
-        nonExistentEntity.delete();
-
-        File entityInNonExistentDir = new File(nonExistentEntity, "foo");
-
-        test(
-                new FileNotFoundException(nonExistentEntity + (IS_WINDOWS ? " (The system cannot find the file specified)" : " (No such file or directory)")),
-                () -> new FileInputStream(nonExistentEntity).close()
-        );
-
-        test(
-                new FileNotFoundException(nonExistentEntity + (IS_WINDOWS ? " (The system cannot find the file specified)" : " (No such file or directory)")),
-                () -> new RandomAccessFile(nonExistentEntity, "r").close()
-        );
-
-        test(
-                new IOException(IS_WINDOWS ? "The system cannot find the path specified" : "No such file or directory"),
-                entityInNonExistentDir::createNewFile
-        );
-
-        test(
-                new IOException(IS_WINDOWS ? "The system cannot find the path specified" : "No such file or directory"),
-                () -> File.createTempFile("foo", "bar", nonExistentEntity)
-        );
-    }
-
-    @Test
-    public void randomAccessFileWrongOperations() throws Exception {
-        File f = temporaryFolder.newFile();
-        try (RandomAccessFile readOnly = new RandomAccessFile(f, "r")) {
-            test(
-                    new IOException("Bad file descriptor"),
-                    () -> readOnly.write(1)
-            );
-            test(
-                    new IOException("Bad file descriptor"),
-                    () -> readOnly.write(new byte[1])
-            );
-        }
-    }
-
-    @Test
-    public void accessDenied() throws Exception {
-        File f;
-        if (IS_WINDOWS) {
-            f = new File("C:\\Windows\\System32\\config\\SAM");
-            try {
-                Files.list(f.toPath().getParent()).close();
-                Assume.assumeTrue(false);
-            } catch (AccessDeniedException ignored) {
-                // Nothing.
-            }
-        } else if (IS_MAC) {
-            Assume.assumeFalse(System.getProperty("user.name").equals("root"));
-            f = new File("/private/var/audit/current");
-        } else {
-            Assume.assumeFalse(System.getProperty("user.name").equals("root"));
-            f = new File("/etc/shadow");
-        }
-
-        test(
-                new FileNotFoundException(f + (IS_WINDOWS ? " (Access is denied)" : " (Permission denied)")),
-                () -> new FileInputStream(f).close()
-        );
-
-        test(
-                new FileNotFoundException(f + (IS_WINDOWS ? " (Access is denied)" : " (Permission denied)")),
-                () -> new FileOutputStream(f).close()
-        );
-
-        test(
-                new FileNotFoundException(f + (IS_WINDOWS ? " (Access is denied)" : " (Permission denied)")),
-                () -> new RandomAccessFile(f, "r").close()
-        );
-
-        if (IS_MAC) {
-            test(
-                    new IOException("Permission denied"),
-                    f::createNewFile
-            );
-        }
-        test(
-                new IOException(IS_WINDOWS ? "The system cannot find the path specified" : IS_MAC ? "Permission denied" : "Not a directory"),
-                () -> File.createTempFile("foo", "bar", f)
-        );
-    }
-
-    @Test
-    public void useDirectoryAsFile() throws Exception {
-        File dir = temporaryFolder.newFolder();
-
-        test(
-                new FileNotFoundException(dir + (IS_WINDOWS ? " (Access is denied)" : " (Is a directory)")),
-                () -> new FileInputStream(dir).close()
-        );
-
-        test(
-                new FileNotFoundException(dir + (IS_WINDOWS ? " (Access is denied)" : " (Is a directory)")),
-                () -> new FileOutputStream(dir).close()
-        );
-
-        test(
-                new FileNotFoundException(dir + (IS_WINDOWS ? " (Access is denied)" : " (Is a directory)")),
-                () -> new RandomAccessFile(dir, "r").close()
-        );
-    }
-
-    @Test
-    public void useFileAsDirectory() throws Exception {
-        File f = new File(temporaryFolder.newFile(), "foo");
-
-        test(
-                new FileNotFoundException(f + (IS_WINDOWS ? " (The system cannot find the path specified)" : " (Not a directory)")),
-                () -> new FileInputStream(f).close()
-        );
-
-        test(
-                new FileNotFoundException(f + (IS_WINDOWS ? " (The system cannot find the path specified)" : " (Not a directory)")),
-                () -> new FileOutputStream(f).close()
-        );
-
-        test(
-                new FileNotFoundException(f + (IS_WINDOWS ? " (The system cannot find the path specified)" : " (Not a directory)")),
-                () -> new RandomAccessFile(f, "r").close()
-        );
-
-        test(
-                new IOException((IS_WINDOWS ? "The system cannot find the path specified" : "Not a directory")),
-                f::createNewFile
-        );
-
-        test(
-                new IOException((IS_WINDOWS ? "The system cannot find the path specified" : "Not a directory")),
-                () -> File.createTempFile("foo", "bar", f)
-        );
-    }
-
-    @Test
-    public void symlinkLoop() throws Exception {
-        Assume.assumeFalse("This test doesn't support support symlinks on Windows", IS_WINDOWS);
-
-        File f = new File(temporaryFolder.newFolder(), "tricky_link");
-        Files.createSymbolicLink(f.toPath(), f.toPath());
-
-        test(
-                new FileNotFoundException(f + " (Too many levels of symbolic links)"),
-                () -> new FileInputStream(f).close()
-        );
-
-        test(
-                new FileNotFoundException(f + " (Too many levels of symbolic links)"),
-                () -> new FileOutputStream(f).close()
-        );
-
-        test(
-                new FileNotFoundException(f + " (Too many levels of symbolic links)"),
-                () -> new RandomAccessFile(f, "r").close()
-        );
-
-        test(
-                new IOException("Too many levels of symbolic links"),
-                () -> File.createTempFile("foo", "bar", f)
-        );
-    }
-
-    @Test
-    public void createNewFile() throws Exception {
-        test(
-                new IOException(IS_WINDOWS ? "The system cannot find the path specified" : "No such file or directory"),
-                () -> new File("").createNewFile()
-        );
-    }
-
-    // TODO Try to test operations of FileInputStream, FileOutputStream, etc.
-
-    private static void test(Exception expectedException, TestRunnable fn) {
-        test(expectedException, () -> {
-            fn.run();
-            return Void.TYPE;
-        });
-    }
-
-    private static <T> void test(Exception expectedException, TestComputable<T> fn) {
-        final T result;
-        try {
-            result = fn.run();
-        } catch (Exception err) {
-            if (err.getClass().equals(expectedException.getClass()) && Objects.equals(err.getMessage(), expectedException.getMessage())) {
-                return;
-            }
-            AssertionError assertionError = new AssertionError("Another exception was expected", err);
-            assertionError.addSuppressed(expectedException);
-            throw assertionError;
-        }
-        fail("Expected an exception but got a result: " + result);
-    }
-
-    @FunctionalInterface
-    private interface TestRunnable {
-        void run() throws Exception;
-    }
-
-    @FunctionalInterface
-    private interface TestComputable<T> {
-        T run() throws Exception;
-    }
-}

test/jdk/jb/java/io/IoOverNio/FileInputStreamTest.java

@@ -1,170 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @summary java.io.FileInputStream uses java.nio.file inside.
- * @library testNio
- * @run junit/othervm
- *      -Djava.nio.file.spi.DefaultFileSystemProvider=testNio.ManglingFileSystemProvider
- *      -Djbr.java.io.use.nio=true
- *      FileInputStreamTest
- */
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-import testNio.ManglingFileSystemProvider;
-
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.nio.channels.FileChannel;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.util.Objects;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertTrue;
-
-public class FileInputStreamTest {
-    @Rule
-    public TemporaryFolder temporaryFolder = new TemporaryFolder();
-
-    @BeforeClass
-    public static void checkSystemProperties() {
-        Objects.requireNonNull(System.getProperty("java.nio.file.spi.DefaultFileSystemProvider"));
-    }
-
-    @Before
-    @After
-    public void resetFs() {
-        ManglingFileSystemProvider.resetTricks();
-    }
-
-    @Test
-    public void readSingleByte() throws Exception {
-        File file = temporaryFolder.newFile();
-        Files.writeString(file.toPath(), "hello world");
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            StringBuilder sb = new StringBuilder();
-            while (true) {
-                int b = fis.read();
-                if (b == -1) {
-                    break;
-                }
-                sb.append((char) b);
-            }
-            assertEquals("h3110 w0r1d", sb.toString());
-        }
-    }
-
-    @Test
-    public void readByteArray() throws Exception {
-        File file = temporaryFolder.newFile();
-        Files.writeString(file.toPath(), "hello world");
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            byte[] buf = new byte[12345];
-            int read = fis.read(buf);
-            assertNotEquals(-1, read);
-            String content = new String(buf, 0, read, StandardCharsets.UTF_8);
-            assertEquals("h3110 w0r1d", content);
-        }
-    }
-
-    @Test
-    public void readAllBytes() throws Exception {
-        File file = temporaryFolder.newFile();
-        Files.writeString(file.toPath(), "hello world ");
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            byte[] buf = fis.readAllBytes();
-            String content = new String(buf, StandardCharsets.UTF_8);
-            assertEquals("h3110 w0r1d " + ManglingFileSystemProvider.extraContent, content);
-        }
-    }
-
-    @Test
-    public void transferTo() throws Exception {
-        File file = temporaryFolder.newFile();
-        Files.writeString(file.toPath(), "hello world");
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
-                fis.transferTo(baos);
-                assertEquals("h3110 w0r1d", baos.toString(StandardCharsets.UTF_8));
-            }
-        }
-    }
-
-    @Test
-    public void skip() throws Exception {
-        File file = temporaryFolder.newFile();
-        Files.writeString(file.toPath(), "especially lovely greet");
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        StringBuilder sb = new StringBuilder();
-        try (FileInputStream fis = new FileInputStream(file)) {
-            sb.append((char) fis.read());
-            assertEquals(10, fis.skip(10));
-            sb.append((char) fis.read());
-            assertEquals(8, fis.skip(8));
-            sb.append(new String(fis.readAllBytes(), StandardCharsets.UTF_8));
-        }
-        assertEquals("31337", sb.toString());
-    }
-
-    @Test
-    public void available() throws Exception {
-        File file = temporaryFolder.newFile();
-        try (FileInputStream fis = new FileInputStream(file)) {
-            assertEquals(0, fis.available());
-        }
-
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (FileInputStream fis = new FileInputStream(file)) {
-            assertEquals(ManglingFileSystemProvider.extraContent.length(), fis.available());
-            byte[] bytes = fis.readAllBytes();
-            assertEquals(ManglingFileSystemProvider.extraContent, new String(bytes, StandardCharsets.UTF_8));
-        }
-    }
-
-    @Test
-    public void getChannel() throws Exception {
-        File file = temporaryFolder.newFile();
-        try (FileInputStream fis = new FileInputStream(file)) {
-            FileChannel channel = fis.getChannel();
-            assertTrue(channel.getClass().getName(), channel instanceof testNio.ManglingFileChannel);
-        }
-    }
-}

test/jdk/jb/java/io/IoOverNio/FileOutputStreamTest.java

@@ -1,103 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @summary java.io.FileOutputStream uses java.nio.file inside.
- * @library testNio
- * @run junit/othervm
- *      -Djava.nio.file.spi.DefaultFileSystemProvider=testNio.ManglingFileSystemProvider
- *      -Djbr.java.io.use.nio=true
- *      FileOutputStreamTest
- */
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-import testNio.ManglingFileSystemProvider;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.nio.channels.FileChannel;
-import java.nio.file.Files;
-import java.util.Objects;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-public class FileOutputStreamTest {
-    @Rule
-    public TemporaryFolder temporaryFolder = new TemporaryFolder();
-
-    @BeforeClass
-    public static void checkSystemProperties() {
-        Objects.requireNonNull(System.getProperty("java.nio.file.spi.DefaultFileSystemProvider"));
-    }
-
-    @Before
-    @After
-    public void resetFs() {
-        ManglingFileSystemProvider.resetTricks();
-    }
-
-    @Test
-    public void writeSingleByte() throws Exception {
-        File file = temporaryFolder.newFile();
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (FileOutputStream fos = new FileOutputStream(file)) {
-            fos.write('l');
-            fos.write('e');
-            fos.write('e');
-            fos.write('t');
-        }
-
-        ManglingFileSystemProvider.mangleFileContent = false;
-        assertEquals("1337", Files.readString(file.toPath()));
-    }
-
-    @Test
-    public void writeByteArray() throws Exception {
-        File file = temporaryFolder.newFile();
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (FileOutputStream fos = new FileOutputStream(file)) {
-            fos.write("hello".getBytes());
-        }
-
-        ManglingFileSystemProvider.mangleFileContent = false;
-        assertEquals("h3110", Files.readString(file.toPath()));
-    }
-
-    @Test
-    public void getChannel() throws Exception {
-        File file = temporaryFolder.newFile();
-        try (FileOutputStream fos = new FileOutputStream(file)) {
-            FileChannel channel = fos.getChannel();
-            assertTrue(channel.getClass().getName(), channel instanceof testNio.ManglingFileChannel);
-        }
-
-    }
-}

test/jdk/jb/java/io/IoOverNio/FileTest.java

@@ -1,599 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @summary java.io.File uses java.nio.file inside.
- * @library testNio
- * @run junit/othervm
- *      -Djava.nio.file.spi.DefaultFileSystemProvider=testNio.ManglingFileSystemProvider
- *      -Djbr.java.io.use.nio=true
- *      FileTest
- */
-
-import org.junit.After;
-import org.junit.Assume;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-import testNio.ManglingFileSystemProvider;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.UncheckedIOException;
-import java.nio.file.AccessDeniedException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.Arrays;
-import java.util.Comparator;
-import java.util.Objects;
-
-import static java.util.Arrays.sort;
-import static org.junit.Assert.assertArrayEquals;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-
-public class FileTest {
-
-    @Rule
-    public TemporaryFolder temporaryFolder = new TemporaryFolder();
-
-    @BeforeClass
-    public static void checkSystemProperties() {
-        Objects.requireNonNull(System.getProperty("java.nio.file.spi.DefaultFileSystemProvider"));
-    }
-
-    public static final boolean IS_WINDOWS = System.getProperty("os.name").toLowerCase().startsWith("win");
-
-    private static void assumeNotWindows() {
-        Assume.assumeFalse(IS_WINDOWS);
-    }
-
-    @Before
-    @After
-    public void resetFs() throws Exception {
-        ManglingFileSystemProvider.resetTricks();
-        try (var dirStream = Files.walk(temporaryFolder.getRoot().toPath())) {
-            dirStream.sorted(Comparator.reverseOrder()).forEach(path -> {
-                if (!path.equals(temporaryFolder.getRoot().toPath())) {
-                    try {
-                        if (IS_WINDOWS) {
-                            Files.setAttribute(path, "dos:readonly", false);
-                        }
-                        Files.delete(path);
-                    } catch (IOException err) {
-                        throw new UncheckedIOException(err);
-                    }
-                }
-            });
-        }
-    }
-
-    @Test
-    public void getAbsolutePath() throws Exception {
-        File file = temporaryFolder.newFile("hello world");
-        assertNotEquals(file.getAbsolutePath(), ManglingFileSystemProvider.mangle(file.getAbsolutePath()));
-
-        ManglingFileSystemProvider.manglePaths = true;
-        assertEquals(file.getAbsolutePath(), ManglingFileSystemProvider.mangle(file.getAbsolutePath()));
-    }
-
-    @Test
-    public void canRead() throws Exception {
-        File file = temporaryFolder.newFile("testFile.txt");
-        assertTrue(file.canRead());
-
-        ManglingFileSystemProvider.denyAccessToEverything = true;
-        assertFalse(file.canRead());
-    }
-
-    @Test
-    public void canWrite() throws Exception {
-        assumeNotWindows();
-
-        File file = temporaryFolder.newFile("testFile.txt");
-        assertTrue(file.canWrite());
-
-        ManglingFileSystemProvider.denyAccessToEverything = true;
-        assertFalse(file.canWrite());
-    }
-
-    @Test
-    public void handlingEmptyPath() throws Exception {
-        File file = new File("");
-
-        // These checks fail
-        assertFalse(file.exists());
-        assertFalse(file.isDirectory());
-        assertFalse(file.isFile());
-
-        assertFalse(file.canRead());
-        if (IS_WINDOWS) {
-            assertTrue(file.setReadable(true));
-        } else {
-            assertFalse(file.setReadable(true));
-        }
-        assertFalse(file.canRead());
-
-        assertFalse(file.canWrite());
-        assertFalse(file.setWritable(true));
-        assertFalse(file.canWrite());
-
-        assertFalse(file.canExecute());
-        if (IS_WINDOWS) {
-            assertTrue(file.setExecutable(true));
-        } else {
-            assertFalse(file.setExecutable(true));
-        }
-        assertFalse(file.canExecute());
-
-        assertFalse(file.setLastModified(1234567890L));
-
-        assertEquals(null, file.list());
-
-        if (IS_WINDOWS) {
-            assertFalse(file.setReadOnly());
-        }
-    }
-
-    @Test
-    public void isDirectory() throws Exception {
-        File dir = temporaryFolder.newFolder("testDir");
-        File file = new File(dir, "testFile.txt");
-        assertTrue(file.createNewFile());
-
-        assertTrue(dir.isDirectory());
-        assertFalse(file.isDirectory());
-
-        ManglingFileSystemProvider.allFilesAreEmptyDirectories = true;
-        assertTrue(dir.isDirectory());
-        assertTrue(file.isDirectory());
-    }
-
-    @Test
-    public void exists() throws Exception {
-        File file = temporaryFolder.newFile("testFile.txt");
-        File dir = temporaryFolder.newFolder("testDir");
-
-        assertTrue(file.exists());
-        assertTrue(dir.exists());
-
-        assertFalse(new File(dir, "non-existing-file").exists());
-        assertFalse(new File(file, "non-existing-file").exists());
-
-        // Corner cases
-        assertFalse(new File("").exists());
-        assertTrue(new File(".").exists());
-        assertTrue(new File("..").exists());
-
-        if (IS_WINDOWS) {
-            assertTrue(new File("C:\\..\\..").exists());
-        } else {
-            assertTrue(new File("/../..").exists());
-        }
-
-        boolean parentOfDirThatDoesNotExist = new File("dir-that-does-not-exist/..").exists();
-        if (IS_WINDOWS) {
-            assertTrue(parentOfDirThatDoesNotExist);
-        } else {
-            assertFalse(parentOfDirThatDoesNotExist);
-        }
-    }
-
-    @Test
-    public void isFile() throws Exception {
-        File file = temporaryFolder.newFile("testFile.txt");
-        File dir = temporaryFolder.newFolder("testDir");
-
-        assertTrue(file.isFile());
-        assertFalse(dir.isFile());
-
-        ManglingFileSystemProvider.allFilesAreEmptyDirectories = true;
-        assertFalse(file.isFile());
-        assertFalse(dir.isFile());
-    }
-
-    @Test
-    public void delete() throws Exception {
-        File file1 = temporaryFolder.newFile("file1.txt");
-        File file2 = temporaryFolder.newFile("file2.txt");
-        assertTrue(file1.exists());
-        assertTrue(file2.exists());
-
-        assertTrue(file1.delete());
-        assertFalse(file1.exists());
-
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        assertFalse(file2.delete());
-        assertTrue(file2.exists());
-    }
-
-    @Test
-    public void list() throws Exception {
-        File dir = temporaryFolder.newFolder("testDir");
-        File file1 = new File(dir, "file1.txt");
-        File file2 = new File(dir, "file2.txt");
-        assertTrue(file1.createNewFile());
-        assertTrue(file2.createNewFile());
-
-        String[] files = dir.list();
-        sort(files);
-        assertArrayEquals(new String[]{"file1.txt", "file2.txt"}, files);
-
-        ManglingFileSystemProvider.manglePaths = true;
-        ManglingFileSystemProvider.addEliteToEveryDirectoryListing = true;
-        files = dir.list();
-        sort(files);
-        assertArrayEquals(new String[]{"37337", "f1131.7x7", "f1132.7x7"}, files);
-    }
-
-    @Test
-    public void mkdir() throws Exception {
-        File dir1 = new File(temporaryFolder.getRoot(), "newDir1");
-        assertTrue(dir1.mkdir());
-        assertTrue(dir1.isDirectory());
-
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        File dir2 = new File(temporaryFolder.getRoot(), "newDir2");
-        assertFalse(dir2.mkdir());
-        assertFalse(dir2.exists());
-    }
-
-    @Test
-    public void renameTo() throws Exception {
-        File file = temporaryFolder.newFile("originalName.txt");
-        File renamedFile = new File(temporaryFolder.getRoot(), "newName.txt");
-        assertTrue(file.exists());
-        assertFalse(renamedFile.exists());
-
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        File renamedFile2 = new File(temporaryFolder.getRoot(), "newName2.txt");
-        assertFalse(renamedFile2.renameTo(renamedFile));
-        assertFalse(renamedFile2.exists());
-    }
-
-    @Test
-    public void setLastModified() throws Exception {
-        File file = temporaryFolder.newFile("testFile.txt");
-
-        // Beware that getting and setting mtime/atime/ctime is often unreliable.
-        Assume.assumeTrue(file.setLastModified(1234567890L));
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        assertFalse(file.setLastModified(123459999L));
-    }
-
-    @Test
-    public void setReadOnly() throws Exception {
-        File file1 = temporaryFolder.newFile("testFile1.txt");
-        assertTrue(file1.canWrite());
-        assertTrue(file1.setReadOnly());
-        assertFalse(file1.canWrite());
-
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        File file2 = temporaryFolder.newFile("testFile2.txt");
-        assertFalse(file2.setReadOnly());
-        assertTrue(file2.canWrite());
-    }
-
-    @Test
-    public void setWritable() throws Exception {
-        assumeNotWindows();
-
-        assertTrue(temporaryFolder.newFile("testFile1.txt").setWritable(false));
-
-        File file2 = temporaryFolder.newFile("testFile2.txt");
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        assertFalse(file2.setWritable(false));
-    }
-
-    @Test
-    public void setReadable() throws Exception {
-        Assume.assumeFalse("setReadable(false) doesn't work for some reason on Windows, even for original java.io.File", IS_WINDOWS);
-
-        File file1 = temporaryFolder.newFile("testFile1.txt");
-        assertTrue(file1.setReadable(false));
-        assertFalse(file1.canRead());
-
-        File file2 = temporaryFolder.newFile("testFile2.txt");
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        assertFalse(file2.setReadable(false));
-        assertTrue(file2.canRead());
-    }
-
-    @Test
-    public void setExecutable() throws Exception {
-        assumeNotWindows();
-
-        File file1 = temporaryFolder.newFile("testFile1.txt");
-        Assume.assumeFalse(file1.canExecute());
-        assertTrue(file1.setExecutable(true));
-        assertTrue(file1.canExecute());
-
-        File file2 = temporaryFolder.newFile("testFile2.txt");
-        ManglingFileSystemProvider.prohibitFileTreeModifications = true;
-        assertFalse(file2.setExecutable(true));
-        assertFalse(file2.canExecute());
-    }
-
-    @Test
-    public void listRoots() throws Exception {
-        File[] roots1 = File.listRoots();
-        String rootsString1 = Arrays.toString(roots1);
-        assertFalse(rootsString1, rootsString1.contains("31337"));
-
-        ManglingFileSystemProvider.addEliteToEveryDirectoryListing = true;
-        File[] roots2 = File.listRoots();
-        String rootsString2 = Arrays.toString(roots2);
-        assertTrue(rootsString2, rootsString2.contains("31337"));
-    }
-
-    @Test
-    public void getCanonicalPath() throws Exception {
-        assumeNotWindows();
-
-        // On macOS, the default temporary directory is a symlink.
-        // The test won't work correctly without canonicalization here.
-        File dir = temporaryFolder.newFolder().getCanonicalFile();
-
-        File file = new File(dir, "file");
-        Files.createFile(file.toPath());
-        Files.createSymbolicLink(file.toPath().resolveSibling("123"), file.toPath());
-
-        ManglingFileSystemProvider.manglePaths = true;
-        ManglingFileSystemProvider.mangleOnlyFileName = true;
-        assertEquals(new File(dir, "f113").toString(), new File(dir, "123").getCanonicalPath());
-    }
-
-    @Test
-    public void normalizationInConstructor() throws Exception {
-        assertEquals(".", new File(".").toString());
-    }
-
-    @Test
-    public void unixSocketExists() throws Exception {
-        assumeNotWindows();
-
-        // Can't use `temporaryFolder` because it may have a long path,
-        // but the length of a Unix socket path is limited in the Kernel.
-        String shortTmpDir;
-        {
-            Process process = new ProcessBuilder("mktemp", "-d")
-                    .redirectInput(ProcessBuilder.Redirect.PIPE)
-                    .start();
-            try (BufferedReader br = new BufferedReader(process.inputReader())) {
-                shortTmpDir = br.readLine();
-            }
-            assertEquals(0, process.waitFor());
-        }
-        try {
-            File unixSocket = new File(shortTmpDir, "unix-socket");
-            Process ncProcess = new ProcessBuilder("nc", "-lU", unixSocket.toString())
-                    .redirectError(ProcessBuilder.Redirect.INHERIT)
-                    .start();
-
-            assertEquals(0, new ProcessBuilder(
-                    "sh", "-c",
-                    "I=50; while [ $I -gt 0 && test -S " + unixSocket + " ]; do sleep 0.1; I=$(expr $I - 1); done; test -S " + unixSocket)
-                    .start()
-                    .waitFor());
-
-            try {
-                assertTrue(unixSocket.exists());
-            } finally {
-                ncProcess.destroy();
-            }
-        } finally {
-            new ProcessBuilder("rm", "-rf", shortTmpDir).start();
-        }
-    }
-
-    @Test
-    public void mkdirsWithDot() throws Exception {
-        File dir = new File(temporaryFolder.getRoot(), "newDir1/.");
-        assertTrue(dir.mkdirs());
-        assertTrue(dir.isDirectory());
-    }
-
-    @Test
-    public void canonicalizeTraverseBeyondRoot() throws Exception {
-        File root = temporaryFolder.getRoot().toPath().getFileSystem().getRootDirectories().iterator().next().toFile();
-
-        assertEquals(root, new File(root, "..").getCanonicalFile());
-        assertEquals(new File(root, "123"), new File(root, "../123").getCanonicalFile());
-    }
-
-    @Test
-    public void canonicalizeRelativePath() throws Exception {
-        File cwd = new File(System.getProperty("user.dir")).getAbsoluteFile();
-
-        assertEquals(cwd, new File("").getCanonicalFile());
-        assertEquals(cwd, new File(".").getCanonicalFile());
-        assertEquals(new File(cwd, "..").toPath().normalize().toFile(), new File("..").getCanonicalFile());
-        assertEquals(new File(cwd, "abc"), new File("abc").getCanonicalFile());
-        assertEquals(new File(cwd, "abc"), new File("abc/.").getCanonicalFile());
-        assertEquals(cwd, new File("abc/..").getCanonicalFile());
-    }
-
-    @Test
-    public void renameFileToAlreadyExistingFile() throws Exception {
-        File file1 = temporaryFolder.newFile("testFile1.txt");
-        try (var fos = new FileOutputStream(file1)) {
-            fos.write("file1".getBytes());
-        }
-
-        File file2 = temporaryFolder.newFile("testFile2.txt");
-        try (var fos = new FileOutputStream(file2)) {
-            fos.write("file2".getBytes());
-        }
-
-        assertTrue(file1.exists());
-        assertTrue(file2.exists());
-
-        assertTrue(file1.renameTo(file2));
-
-        assertFalse(file1.exists());
-        assertTrue(file2.exists());
-
-        try (var fis = Files.newInputStream(file2.toPath());
-             var bis = new BufferedReader(new InputStreamReader(fis))) {
-            String line = bis.readLine();
-            assertEquals("file1", line);
-        }
-    }
-
-    @Test
-    public void testToCanonicalPathSymLinksAware() throws Exception {
-        // getCanonicalFile capitalizes the drive letter on Windows.
-        File rootDir = temporaryFolder.newFolder("root").getCanonicalFile();
-        temporaryFolder.newFolder("root/dir1/dir2/dir3/dir4");
-        String root = rootDir.getAbsolutePath();
-
-        // non-recursive link
-        Path link1 = new File(rootDir, "dir1/dir2_link").toPath();
-        Path target1 = new File(rootDir, "dir1/dir2").toPath();
-        try {
-            Files.createSymbolicLink(link1, target1);
-        } catch (AccessDeniedException ignored) {
-            Assume.assumeTrue("Cannot create symbolic link", false);
-        }
-        // recursive links to a parent dir
-        Path link = new File(rootDir, "dir1/dir1_link").toPath();
-        Path target = new File(rootDir, "dir1").toPath();
-        Files.createSymbolicLink(link, target);
-
-        // links should NOT be resolved when ../ stays inside the linked path
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/./"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/dir3/../"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2/dir3", canonicalize(root + "/dir1/dir2_link/dir3/dir4/../"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/dir3/dir4/../../"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/../dir1/dir2_link/dir3/../"));
-
-        // I.II) recursive links
-        assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/./"));
-        assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/dir2/../"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir1_link/dir2/dir3/../"));
-        assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/dir2/dir3/../../"));
-        assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/../dir1/dir1_link/dir2/../"));
-
-        // II) links should be resolved is ../ escapes outside
-
-        // II.I) non-recursive links
-        assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir2_link/../"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/../dir2"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/../../dir1/dir2"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/dir3/../../dir2"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/dir2_link/dir3/../../../dir1/dir2"));
-        assertEqualsReplacingSeparators(root + "/dir1/dir2", canonicalize(root + "/dir1/../dir1/dir2_link/../dir2"));
-
-        if (IS_WINDOWS) {
-            assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/../"));
-            assertEqualsReplacingSeparators(root + "/dir1/dir1", canonicalize(root + "/dir1/dir1_link/../dir1"));
-            assertEqualsReplacingSeparators(root + "/root/dir1", canonicalize(root + "/dir1/dir1_link/../../root/dir1"));
-            assertEqualsReplacingSeparators(root + "/dir1/dir1", canonicalize(root + "/dir1/dir1_link/dir2/../../dir1"));
-            assertEqualsReplacingSeparators(root + "/root/dir1", canonicalize(root + "/dir1/dir1_link/dir2/../../../root/dir1"));
-            assertEqualsReplacingSeparators(root + "/dir1/dir1", canonicalize(root + "/dir1/../dir1/dir1_link/../dir1"));
-        } else {
-            assertEqualsReplacingSeparators(root, canonicalize(root + "/dir1/dir1_link/../"));
-            assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/../dir1"));
-            assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/../../root/dir1"));
-            assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/dir2/../../dir1"));
-            assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/dir1_link/dir2/../../../root/dir1"));
-            assertEqualsReplacingSeparators(root + "/dir1", canonicalize(root + "/dir1/../dir1/dir1_link/../dir1"));
-        }
-    }
-
-    private static String canonicalize(String path) throws IOException {
-        return new File(path).getCanonicalFile().toString();
-    }
-
-    private static void assertEqualsReplacingSeparators(String expected, String actual) {
-        assertEquals(expected.replace('\\', '/'), actual.replace('\\', '/'));
-    }
-
-    @Test
-    public void testCreateNewFile() throws Exception {
-        File rootDir = temporaryFolder.newFolder();
-
-        File f = new File(rootDir, "hello.txt");
-        assertFalse(f.exists());
-
-        assertTrue(f.createNewFile());
-        assertTrue(f.exists());
-
-        assertFalse(f.createNewFile());
-        assertTrue(f.exists());
-
-        // Corner cases.
-        assertFalse(rootDir.createNewFile());
-
-        try {
-            boolean ignored = new File("").createNewFile();
-            fail("Expected IOException");
-        } catch (IOException e) {
-            // Nothing.
-        }
-        assertFalse(new File(".").createNewFile());
-        assertFalse(new File("..").createNewFile());
-    }
-
-    @Test
-    public void testDeletionOfReadOnlyFileOnWindows() throws Exception {
-        Assume.assumeTrue(IS_WINDOWS);
-        File dir = temporaryFolder.newFolder();
-        File file = new File(dir, "testFile.txt");
-        assertTrue(file.createNewFile());
-        assertTrue(file.setReadOnly());
-
-        assertTrue(file.delete());
-        assertFalse(file.exists());
-    }
-
-    // TODO Test file size.
-
-//    @Test
-//    public void getTotalSpace() throws Exception {
-//        throw new UnsupportedOperationException();
-//    }
-//
-//    @Test
-//    public void getFreeSpace() throws Exception {
-//        throw new UnsupportedOperationException();
-//    }
-//
-//    @Test
-//    public void getUsableSpace() throws Exception {
-//        throw new UnsupportedOperationException();
-//    }
-//
-//    @Test
-//    public void compareTo() throws Exception {
-//        throw new UnsupportedOperationException();
-//    }
-}

test/jdk/jb/java/io/IoOverNio/RandomAccessFileTest.java

@@ -1,271 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @summary java.io.RandomAccessFileTest uses java.nio.file inside.
- * @library testNio
- * @run junit/othervm
- *      -Djava.nio.file.spi.DefaultFileSystemProvider=testNio.ManglingFileSystemProvider
- *      -Djbr.java.io.use.nio=true
- *      RandomAccessFileTest
- */
-
-import org.junit.After;
-import org.junit.Assume;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.rules.TemporaryFolder;
-import testNio.ManglingFileSystemProvider;
-
-import java.io.EOFException;
-import java.io.File;
-import java.io.RandomAccessFile;
-import java.nio.channels.FileChannel;
-import java.nio.channels.FileLock;
-import java.nio.file.Files;
-import java.util.Arrays;
-import java.util.Objects;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-
-
-public class RandomAccessFileTest {
-    @Rule
-    public TemporaryFolder temporaryFolder = new TemporaryFolder();
-
-    @BeforeClass
-    public static void checkSystemProperties() {
-        Objects.requireNonNull(System.getProperty("java.nio.file.spi.DefaultFileSystemProvider"));
-    }
-
-    private static void assumeNotWindows() {
-        Assume.assumeFalse(System.getProperty("os.name").toLowerCase().startsWith("win"));
-    }
-
-    @Before
-    @After
-    public void resetFs() {
-        ManglingFileSystemProvider.resetTricks();
-    }
-
-    @Test
-    public void usesNioForNonExistingFiles() throws Exception {
-        File nonExistingFile = new File(temporaryFolder.getRoot(), "non-existing-file");
-        assertFalse(Files.exists(nonExistingFile.toPath()));
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(nonExistingFile, "rw")) {
-            byte[] buffer = "hello".getBytes();
-            rac.write(buffer);
-            rac.seek(0);
-            rac.readFully(buffer);
-            assertEquals("h3110", new String(buffer));
-        }
-    }
-
-    @Test
-    public void getChannel() throws Exception {
-        File file = temporaryFolder.newFile();
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-            FileChannel channel = rac.getChannel();
-            assertTrue(channel.getClass().getName(), channel instanceof testNio.ManglingFileChannel);
-        }
-        try (RandomAccessFile rac = new RandomAccessFile(file, "rw")) {
-            FileChannel channel = rac.getChannel();
-            assertTrue(channel.getClass().getName(), channel instanceof testNio.ManglingFileChannel);
-        }
-    }
-
-    @Test
-    public void getFilePointer() throws Exception {
-        File file = temporaryFolder.newFile();
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-            assertEquals(0, rac.getFilePointer());
-        }
-
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-            rac.readLine();
-            assertEquals(ManglingFileSystemProvider.extraContent.length(), rac.getFilePointer());
-        }
-    }
-
-    @Test
-    public void length() throws Exception {
-        File file = temporaryFolder.newFile();
-        String content = "hello";
-        Files.writeString(file.toPath(), content);
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-           assertEquals(content.length() + ManglingFileSystemProvider.extraContent.length(), rac.length());
-        }
-    }
-
-    @Test
-    public void read() throws Exception {
-        File file = temporaryFolder.newFile();
-
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-            String extraContent = ManglingFileSystemProvider.extraContent;
-            for (int i = 0; i < extraContent.length(); i++) {
-                assertEquals((int) extraContent.charAt(i), rac.read());
-            }
-            assertEquals(-1, rac.read());
-        }
-    }
-
-    @Test
-    public void readFully() throws Exception {
-        File file = temporaryFolder.newFile();
-        Files.writeString(file.toPath(), "adapters everywhere");
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-            byte[] data = new byte[10];
-            rac.readFully(data);
-            assertEquals("4d4p73r5 3", new String(data));
-
-            Arrays.fill(data, (byte)' ');
-            try {
-                rac.readFully(data);
-                fail("An error should have been thrown but wasn't");
-            } catch (EOFException ignored) {
-                // Nothing.
-            }
-            assertEquals("v3rywh3r3 ", new String(data));
-        }
-    }
-
-    @Test
-    public void seek() throws Exception {
-        File file = temporaryFolder.newFile();
-
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "r")) {
-            String extraContent = ManglingFileSystemProvider.extraContent;
-            for (int i = extraContent.length() - 1; i >= 0; i--) {
-                rac.seek(i);
-                assertEquals(extraContent.charAt(i), (char) rac.readByte());
-            }
-        }
-    }
-
-    @Test
-    public void setLength() throws Exception {
-        String extraContent = ManglingFileSystemProvider.extraContent;
-        assertTrue(extraContent.length() > 2);
-        assertTrue(extraContent.length() < 11);
-
-        File file = temporaryFolder.newFile();
-        String content = "hello";
-        Files.writeString(file.toPath(), content);
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        ManglingFileSystemProvider.readExtraFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "rw")) {
-            assertEquals(content.length() + extraContent.length(), rac.length());
-            rac.setLength(content.length() + 2);
-            assertEquals(content.length() + 2, rac.length());
-            rac.seek(0);
-            assertEquals("h3110" + extraContent.substring(0, 2), rac.readLine());
-        }
-
-        ManglingFileSystemProvider.readExtraFileContent = false;
-        Files.writeString(file.toPath(), content);
-        try (RandomAccessFile rac = new RandomAccessFile(file, "rw")) {
-            assertEquals(content.length(), rac.length());
-            rac.setLength(11);
-            assertEquals(11, rac.length());
-
-            rac.seek(0);
-            byte[] buffer = new byte[1234];
-            try {
-                rac.readFully(buffer);
-                fail("EOFException wasn't thrown");
-            } catch (EOFException ignored) {
-                // Expected behavior.
-            }
-            assertEquals("h3110\0\0\0\0\0\0", new String(buffer, 0, 11));
-
-            // setLength should keep the offset.
-            rac.seek(0);
-            assertEquals('h', rac.readByte());
-            rac.setLength(17);
-            assertEquals('3', rac.readByte());
-            rac.setLength(3);
-            assertEquals('1', rac.readByte());
-            try {
-                rac.readByte();
-                fail("EOFException wasn't thrown");
-            } catch (EOFException ignored) {
-                // Expected behavior.
-            }
-        }
-    }
-
-    @Test
-    public void writeSingleByte() throws Exception {
-        File file = temporaryFolder.newFile();
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "rw")) {
-            rac.write('f');
-            rac.write('o');
-            rac.write('o');
-            rac.write('b');
-            rac.write('a');
-            rac.write('r');
-        }
-
-        ManglingFileSystemProvider.mangleFileContent = false;
-        assertEquals("f00b4r", Files.readString(file.toPath()));
-    }
-
-    @Test
-    public void writeBytes() throws Exception {
-        File file = temporaryFolder.newFile();
-
-        ManglingFileSystemProvider.mangleFileContent = true;
-        try (RandomAccessFile rac = new RandomAccessFile(file, "rw")) {
-            rac.writeBytes("herpderp");
-        }
-
-        ManglingFileSystemProvider.mangleFileContent = false;
-        assertEquals("h3rpd3rp", Files.readString(file.toPath()));
-    }
-
-    @Test
-    public void testDeletionOfLockedFile() throws Exception {
-        Assume.assumeTrue("Windows-only test", System.getProperty("os.name").toLowerCase().startsWith("win"));
-        File file = temporaryFolder.newFile();
-        try (RandomAccessFile rac = new RandomAccessFile(file, "rw");
-             FileLock ignored = rac.getChannel().lock()) {
-            assertFalse(file.delete());
-        }
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingBasicFileAttributeView.java

@@ -1,56 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.nio.file.AccessDeniedException;
-import java.nio.file.attribute.BasicFileAttributeView;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.nio.file.attribute.FileTime;
-
-class ManglingBasicFileAttributeView implements BasicFileAttributeView {
-    private final BasicFileAttributeView view;
-
-    ManglingBasicFileAttributeView(BasicFileAttributeView view) {
-        this.view = view;
-    }
-
-    @Override
-    public String name() {
-        return view.name();
-    }
-
-    @Override
-    public BasicFileAttributes readAttributes() throws IOException {
-        return new ManglingBasicFileAttributes(view.readAttributes());
-    }
-
-    @Override
-    public void setTimes(FileTime lastModifiedTime, FileTime lastAccessTime, FileTime createTime) throws IOException {
-        if (ManglingFileSystemProvider.prohibitFileTreeModifications) {
-            throw new AccessDeniedException(null, null, "Test: Prohibiting file tree modifications");
-        }
-        view.setTimes(lastModifiedTime, lastAccessTime, createTime);
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingBasicFileAttributes.java

@@ -1,80 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.nio.file.attribute.BasicFileAttributes;
-import java.nio.file.attribute.FileTime;
-
-class ManglingBasicFileAttributes implements BasicFileAttributes {
-    private final BasicFileAttributes attrs;
-
-    ManglingBasicFileAttributes(BasicFileAttributes attrs) {
-        this.attrs = attrs;
-    }
-
-    @Override
-    public FileTime lastModifiedTime() {
-        return attrs.lastModifiedTime();
-    }
-
-    @Override
-    public FileTime lastAccessTime() {
-        return attrs.lastAccessTime();
-    }
-
-    @Override
-    public FileTime creationTime() {
-        return attrs.creationTime();
-    }
-
-    @Override
-    public boolean isRegularFile() {
-        return attrs.isRegularFile() && !ManglingFileSystemProvider.allFilesAreEmptyDirectories;
-    }
-
-    @Override
-    public boolean isDirectory() {
-        return attrs.isDirectory() || ManglingFileSystemProvider.allFilesAreEmptyDirectories;
-    }
-
-    @Override
-    public boolean isSymbolicLink() {
-        return attrs.isSymbolicLink() && !ManglingFileSystemProvider.denyAccessToEverything;
-    }
-
-    @Override
-    public boolean isOther() {
-        return attrs.isOther() && !ManglingFileSystemProvider.denyAccessToEverything;
-    }
-
-    @Override
-    public long size() {
-        return attrs.size();
-    }
-
-    @Override
-    public Object fileKey() {
-        return attrs.fileKey();
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingDirectoryStream.java

@@ -1,79 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.nio.file.DirectoryStream;
-import java.nio.file.Path;
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-
-class ManglingDirectoryStream implements DirectoryStream<Path> {
-    private final ManglingFileSystem manglingFileSystem;
-    private final ManglingPath dir;
-    private final DirectoryStream<Path> delegateResult;
-    private boolean addEliteElement = ManglingFileSystemProvider.addEliteToEveryDirectoryListing;
-
-    public ManglingDirectoryStream(ManglingFileSystem manglingFileSystem, ManglingPath dir, DirectoryStream<Path> delegateResult) {
-        this.manglingFileSystem = manglingFileSystem;
-        this.dir = dir;
-        this.delegateResult = delegateResult;
-    }
-
-    @Override
-    public void close() throws IOException {
-        delegateResult.close();
-    }
-
-    @Override
-    public Iterator<Path> iterator() {
-        return new ManglingPathIterator();
-    }
-
-    class ManglingPathIterator implements Iterator<Path> {
-        private final Iterator<Path> delegateIterator = delegateResult.iterator();
-
-        @Override
-        public boolean hasNext() {
-            if (delegateIterator.hasNext()) return true;
-            if (addEliteElement) {
-                addEliteElement = false;
-                return true;
-            }
-            return false;
-        }
-
-        @Override
-        public Path next() {
-            try {
-                return new ManglingPath(manglingFileSystem, delegateIterator.next());
-            } catch (NoSuchElementException err) {
-                if (ManglingFileSystemProvider.addEliteToEveryDirectoryListing) {
-                    return dir.resolve("37337");
-                }
-                throw err;
-            }
-        }
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingDosFileAttributeView.java

@@ -1,75 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.nio.file.AccessDeniedException;
-import java.nio.file.attribute.DosFileAttributeView;
-import java.nio.file.attribute.DosFileAttributes;
-
-class ManglingDosFileAttributeView extends ManglingBasicFileAttributeView implements DosFileAttributeView {
-    private final DosFileAttributeView view;
-
-    ManglingDosFileAttributeView(DosFileAttributeView view) {
-        super(view);
-        this.view = view;
-    }
-
-    @Override
-    public DosFileAttributes readAttributes() throws IOException {
-        return new ManglingDosFileAttributes(view.readAttributes());
-    }
-
-    @Override
-    public void setReadOnly(boolean value) throws IOException {
-        if (ManglingFileSystemProvider.prohibitFileTreeModifications) {
-            throw new AccessDeniedException(null, null, "Test: Prohibiting file tree modifications");
-        }
-        view.setReadOnly(value);
-    }
-
-    @Override
-    public void setHidden(boolean value) throws IOException {
-        if (ManglingFileSystemProvider.prohibitFileTreeModifications) {
-            throw new AccessDeniedException(null, null, "Test: Prohibiting file tree modifications");
-        }
-        view.setHidden(value);
-    }
-
-    @Override
-    public void setSystem(boolean value) throws IOException {
-        if (ManglingFileSystemProvider.prohibitFileTreeModifications) {
-            throw new AccessDeniedException(null, null, "Test: Prohibiting file tree modifications");
-        }
-        view.setSystem(value);
-    }
-
-    @Override
-    public void setArchive(boolean value) throws IOException {
-        if (ManglingFileSystemProvider.prohibitFileTreeModifications) {
-            throw new AccessDeniedException(null, null, "Test: Prohibiting file tree modifications");
-        }
-        view.setArchive(value);
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingDosFileAttributes.java

@@ -1,55 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.nio.file.attribute.DosFileAttributes;
-
-class ManglingDosFileAttributes extends ManglingBasicFileAttributes implements DosFileAttributes {
-    private final DosFileAttributes attrs;
-
-    ManglingDosFileAttributes(DosFileAttributes attrs) {
-        super(attrs);
-        this.attrs = attrs;
-    }
-
-    @Override
-    public boolean isReadOnly() {
-        return attrs.isReadOnly() && !ManglingFileSystemProvider.denyAccessToEverything;
-    }
-
-    @Override
-    public boolean isHidden() {
-        return attrs.isHidden();
-    }
-
-    @Override
-    public boolean isArchive() {
-        return attrs.isArchive();
-    }
-
-    @Override
-    public boolean isSystem() {
-        return attrs.isSystem();
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingFileChannel.java

@@ -1,205 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.nio.MappedByteBuffer;
-import java.nio.channels.FileChannel;
-import java.nio.channels.FileLock;
-import java.nio.channels.ReadableByteChannel;
-import java.nio.channels.WritableByteChannel;
-import java.nio.charset.StandardCharsets;
-
-public class ManglingFileChannel extends FileChannel {
-    private final FileChannel delegateChannel;
-    private byte[] extraBytes;
-    private int extraBytesPosition = -1;
-
-    public ManglingFileChannel(FileChannel delegateChannel) {
-        this.delegateChannel = delegateChannel;
-        if (ManglingFileSystemProvider.readExtraFileContent) {
-            extraBytes = ManglingFileSystemProvider.extraContent.getBytes(StandardCharsets.UTF_8);
-        } else {
-            extraBytes = new byte[0];
-        }
-    }
-
-    @Override
-    public int read(ByteBuffer dst) throws IOException {
-        int read = delegateChannel.read(dst);
-        if (ManglingFileSystemProvider.mangleFileContent) {
-            for (int i = 0; i < read; i++) {
-                dst.put(i, (byte) ManglingFileSystemProvider.mangle(dst.get(i)));
-            }
-        }
-        if (!dst.hasRemaining()) {
-            return read;
-        }
-        if (extraBytesPosition == -1) {
-            extraBytesPosition = 0;
-        }
-        if (extraBytesPosition < extraBytes.length) {
-            if (read == -1) {
-                read = 0;
-            }
-            do {
-                dst.put(extraBytes[extraBytesPosition++]);
-                read++;
-            } while (dst.hasRemaining() && extraBytesPosition < extraBytes.length);
-        }
-        return read;
-    }
-
-    @Override
-    public long read(ByteBuffer[] dsts, int offset, int length) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public int write(ByteBuffer src) throws IOException {
-        if (ManglingFileSystemProvider.mangleFileContent) {
-            byte[] srcArray = new byte[src.remaining()];
-            src.get(srcArray);
-            src = ByteBuffer.wrap(ManglingFileSystemProvider.mangle(srcArray));
-        }
-        return delegateChannel.write(src);
-    }
-
-    @Override
-    public long write(ByteBuffer[] srcs, int offset, int length) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public long position() throws IOException {
-        long delegatePosition = delegateChannel.position();
-        if (extraBytesPosition != -1) {
-            return extraBytesPosition + delegatePosition;
-        }
-        return delegatePosition;
-    }
-
-    @Override
-    public FileChannel position(long newPosition) throws IOException {
-        long size = delegateChannel.size();
-        if (newPosition > size) {
-            assert newPosition <= size + extraBytes.length;
-            delegateChannel.position(size);
-            extraBytesPosition = (int)(newPosition - size);
-        } else {
-            extraBytesPosition = -1;
-            delegateChannel.position(newPosition);
-        }
-        return this;
-    }
-
-    @Override
-    public long size() throws IOException {
-        return delegateChannel.size() + extraBytes.length;
-    }
-
-    @Override
-    public FileChannel truncate(long size) throws IOException {
-        long actualSize = delegateChannel.size();
-        if (size < actualSize) {
-            delegateChannel.truncate(size);
-            extraBytesPosition = -1;
-        } else {
-            size -= actualSize;
-            if (size < extraBytes.length) {
-                byte[] newExtraBytes = new byte[(int)size];
-                System.arraycopy(extraBytes, 0, newExtraBytes, 0, (int)size);
-                extraBytes = newExtraBytes;
-                extraBytesPosition = Math.min(extraBytesPosition, extraBytes.length - 1);
-            }
-        }
-        return this;
-    }
-
-    @Override
-    public void force(boolean metaData) throws IOException {
-        delegateChannel.force(metaData);
-    }
-
-    @Override
-    public long transferTo(long position, long count, WritableByteChannel target) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public long transferFrom(ReadableByteChannel src, long position, long count) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public int read(ByteBuffer dst, long position) throws IOException {
-        int read = delegateChannel.read(dst, position);
-        if (ManglingFileSystemProvider.mangleFileContent) {
-            for (int i = 0; i < dst.remaining(); i++) {
-                dst.put(i, (byte) ManglingFileSystemProvider.mangle(dst.get(i)));
-            }
-        }
-        if (dst.hasRemaining() && extraBytesPosition == -1) {
-            extraBytesPosition = 0;
-        }
-        while (dst.hasRemaining() && extraBytesPosition < extraBytes.length) {
-            dst.put(extraBytes[extraBytesPosition++]);
-            read++;
-        }
-        return read;
-    }
-
-    @Override
-    public int write(ByteBuffer src, long position) throws IOException {
-        if (ManglingFileSystemProvider.mangleFileContent) {
-            byte[] srcArray = new byte[src.remaining()];
-            src.get(srcArray);
-            src = ByteBuffer.wrap(ManglingFileSystemProvider.mangle(srcArray));
-            return delegateChannel.write(src);
-        }
-        return delegateChannel.write(src, position);
-    }
-
-    @Override
-    public MappedByteBuffer map(MapMode mode, long position, long size) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public FileLock lock(long position, long size, boolean shared) throws IOException {
-        return delegateChannel.lock(position, size, shared);
-    }
-
-    @Override
-    public FileLock tryLock(long position, long size, boolean shared) throws IOException {
-        return delegateChannel.tryLock(position, size, shared);
-    }
-
-    @Override
-    protected void implCloseChannel() throws IOException {
-        extraBytesPosition = -1;
-        delegateChannel.close();
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingFileSystem.java

@@ -1,116 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.nio.file.FileStore;
-import java.nio.file.FileSystem;
-import java.nio.file.Path;
-import java.nio.file.PathMatcher;
-import java.nio.file.Paths;
-import java.nio.file.WatchService;
-import java.nio.file.attribute.UserPrincipalLookupService;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Set;
-
-public class ManglingFileSystem extends FileSystem {
-    private final ManglingFileSystemProvider provider;
-
-    public ManglingFileSystem(ManglingFileSystemProvider fileSystemProvider) {
-        this.provider = fileSystemProvider;
-    }
-
-    @Override
-    public ManglingFileSystemProvider provider() {
-        return provider;
-    }
-
-    @Override
-    public void close() throws IOException {
-        provider.defaultFs.close();
-    }
-
-    @Override
-    public boolean isOpen() {
-        return provider.defaultFs.isOpen();
-    }
-
-    @Override
-    public boolean isReadOnly() {
-        return provider.defaultFs.isReadOnly();
-    }
-
-    @Override
-    public String getSeparator() {
-        return provider.defaultFs.getSeparator();
-    }
-
-    @Override
-    public Iterable<Path> getRootDirectories() {
-        Iterable<Path> delegateRoots = provider.defaultFs.getRootDirectories();
-        List<Path> result = new ArrayList<>();
-        for (Path delegateRoot : delegateRoots) {
-            result.add(new ManglingPath(this, delegateRoot));
-        }
-        if (ManglingFileSystemProvider.addEliteToEveryDirectoryListing) {
-            if (getSeparator().equals("/")) {
-                result.add(new ManglingPath(this, Paths.get("/31337")));
-            } else {
-                result.add(new ManglingPath(this, Paths.get("\\\\r00t\\31337\\")));
-            }
-        }
-        return result;
-    }
-
-    @Override
-    public Iterable<FileStore> getFileStores() {
-        return provider.defaultFs.getFileStores();
-    }
-
-    @Override
-    public Set<String> supportedFileAttributeViews() {
-        return provider.defaultFs.supportedFileAttributeViews();
-    }
-
-    @Override
-    public Path getPath(final String first, final String... more) {
-        return new ManglingPath(this, provider.defaultFs.getPath(first, more));
-    }
-
-    @Override
-    public PathMatcher getPathMatcher(String syntaxAndPattern) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public UserPrincipalLookupService getUserPrincipalLookupService() {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public WatchService newWatchService() throws IOException {
-        throw new UnsupportedOperationException();
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingFileSystemProvider.java

@@ -1,306 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.net.URI;
-import java.nio.channels.FileChannel;
-import java.nio.channels.SeekableByteChannel;
-import java.nio.file.AccessDeniedException;
-import java.nio.file.AccessMode;
-import java.nio.file.CopyOption;
-import java.nio.file.DirectoryStream;
-import java.nio.file.FileStore;
-import java.nio.file.FileSystem;
-import java.nio.file.LinkOption;
-import java.nio.file.OpenOption;
-import java.nio.file.Path;
-import java.nio.file.attribute.BasicFileAttributeView;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.nio.file.attribute.DosFileAttributeView;
-import java.nio.file.attribute.DosFileAttributes;
-import java.nio.file.attribute.FileAttribute;
-import java.nio.file.attribute.FileAttributeView;
-import java.nio.file.attribute.PosixFileAttributeView;
-import java.nio.file.attribute.PosixFileAttributes;
-import java.nio.file.spi.FileSystemProvider;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
-
-public class ManglingFileSystemProvider extends FileSystemProvider {
-    public static final String extraContent = "3x7r4";
-    private final static byte[] manglingTable = new byte[256];
-    public static boolean mangleFileContent = false;
-    public static boolean readExtraFileContent = false;
-    public static boolean manglePaths = false;
-    public static boolean mangleOnlyFileName = false;
-    public static boolean denyAccessToEverything = false;
-    public static boolean allFilesAreEmptyDirectories = false;
-    public static boolean prohibitFileTreeModifications = false;
-    public static boolean addEliteToEveryDirectoryListing = false;
-
-    static {
-        for (int i = 0; i < manglingTable.length; i++) {
-            manglingTable[i] = (byte) i;
-        }
-        manglingTable['A'] = '4';
-        manglingTable['a'] = '4';
-        manglingTable['E'] = '3';
-        manglingTable['e'] = '3';
-        manglingTable['G'] = '9';
-        manglingTable['g'] = '9';
-        manglingTable['I'] = '1';
-        manglingTable['i'] = '1';
-        manglingTable['L'] = '1';
-        manglingTable['l'] = '1';
-        manglingTable['O'] = '0';
-        manglingTable['o'] = '0';
-        manglingTable['S'] = '5';
-        manglingTable['s'] = '5';
-        manglingTable['T'] = '7';
-        manglingTable['t'] = '7';
-        manglingTable['Z'] = '2';
-        manglingTable['z'] = '2';
-
-        assert mangle("eleet haxor").equals("31337 h4x0r");
-    }
-
-    final FileSystemProvider defaultProvider;
-    final FileSystem defaultFs;
-    final ManglingFileSystem manglingFs = new ManglingFileSystem(this);
-
-    public ManglingFileSystemProvider(FileSystemProvider defaultProvider) {
-        super();
-        this.defaultProvider = defaultProvider;
-        this.defaultFs = defaultProvider.getFileSystem(URI.create("file:/"));
-    }
-
-    public static void resetTricks() {
-        mangleFileContent = false;
-        readExtraFileContent = false;
-        manglePaths = false;
-        mangleOnlyFileName = false;
-        denyAccessToEverything = false;
-        allFilesAreEmptyDirectories = false;
-        prohibitFileTreeModifications = false;
-        addEliteToEveryDirectoryListing = false;
-    }
-
-    public static String mangle(String source) {
-        StringBuilder sb = new StringBuilder();
-        for (char c : source.toCharArray()) {
-            if ((int) c < manglingTable.length) {
-                sb.append((char) manglingTable[c]);
-            } else {
-                sb.append(c);
-            }
-        }
-        return sb.toString();
-    }
-
-    public static byte[] mangle(byte[] source) {
-        byte[] result = new byte[source.length];
-        for (int i = 0; i < source.length; i++) {
-            result[i] = manglingTable[source[i]];
-        }
-        return result;
-    }
-
-    public static int mangle(int source) {
-        if (source >= 0 && source < manglingTable.length) {
-            return manglingTable[source];
-        }
-        return source;
-    }
-
-    static Path unwrap(Path path) {
-        if (path instanceof ManglingPath pcp) {
-            return pcp.delegate;
-        }
-        throw new IllegalArgumentException("Wrong path " + path + " (class: " + path.getClass() + ")");
-    }
-
-    @Override
-    public String getScheme() {
-        return defaultProvider.getScheme();
-    }
-
-    @Override
-    public FileSystem newFileSystem(URI uri, Map<String, ?> env) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public FileSystem getFileSystem(URI uri) {
-        URI rootUri = URI.create("file:/");
-        if (!Objects.equals(uri, rootUri)) {
-            throw new UnsupportedOperationException();
-        }
-        return manglingFs;
-    }
-
-    @Override
-    public Path getPath(URI uri) {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public FileChannel newFileChannel(Path path, Set<? extends OpenOption> options, FileAttribute<?>... attrs) throws IOException {
-        return new ManglingFileChannel(defaultProvider.newFileChannel(unwrap(path), options, attrs));
-    }
-
-    @Override
-    public SeekableByteChannel newByteChannel(Path path, Set<? extends OpenOption> options, FileAttribute<?>... attrs) throws IOException {
-        return newFileChannel(path, options, attrs);
-    }
-
-    @Override
-    public DirectoryStream<Path> newDirectoryStream(Path dir, DirectoryStream.Filter<? super Path> filter) throws IOException {
-        return new ManglingDirectoryStream(manglingFs, (ManglingPath) dir, defaultProvider.newDirectoryStream(unwrap(dir), filter));
-    }
-
-    @Override
-    public void createDirectory(Path dir, FileAttribute<?>... attrs) throws IOException {
-        if (prohibitFileTreeModifications) {
-            throw new AccessDeniedException(dir.toString(), null, "Test: All file tree modifications are prohibited");
-        }
-        defaultProvider.createDirectory(unwrap(dir), attrs);
-    }
-
-    @Override
-    public void delete(Path path) throws IOException {
-        if (prohibitFileTreeModifications) {
-            throw new AccessDeniedException(path.toString(), null, "Test: All file tree modifications are prohibited");
-        }
-        defaultProvider.delete(unwrap(path));
-    }
-
-    @Override
-    public void copy(Path source, Path target, CopyOption... options) throws IOException {
-        if (prohibitFileTreeModifications) {
-            throw new AccessDeniedException(source.toString(), null, "Test: All file tree modifications are prohibited");
-        }
-        Path source2 = unwrap(source);
-        Path target2 = unwrap(target);
-        defaultProvider.copy(source2, target2, options);
-    }
-
-    @Override
-    public void move(Path source, Path target, CopyOption... options) throws IOException {
-        if (prohibitFileTreeModifications) {
-            throw new AccessDeniedException(source.toString(), null, "Test: All file tree modifications are prohibited");
-        }
-        Path source2 = unwrap(source);
-        Path target2 = unwrap(target);
-        defaultProvider.move(source2, target2, options);
-    }
-
-    @Override
-    public boolean isSameFile(Path path, Path path2) throws IOException {
-        Path source2 = unwrap(path);
-        Path target2 = unwrap(path2);
-        return defaultProvider.isSameFile(source2, target2);
-    }
-
-    @Override
-    public boolean isHidden(Path path) throws IOException {
-        return defaultProvider.isHidden(unwrap(path));
-    }
-
-    @Override
-    public FileStore getFileStore(Path path) throws IOException {
-        return defaultProvider.getFileStore(unwrap(path));
-    }
-
-    @Override
-    public void checkAccess(Path path, AccessMode... modes) throws IOException {
-        defaultProvider.checkAccess(unwrap(path), modes);
-        if (denyAccessToEverything) {
-            throw new AccessDeniedException(path.toString(), null, "Test: No access rules to anything");
-        }
-    }
-
-    @Override
-    public <V extends FileAttributeView> V getFileAttributeView(Path path, Class<V> type, LinkOption... options) {
-        return wrap(defaultProvider.getFileAttributeView(unwrap(path), type, options));
-    }
-
-    @Override
-    public <A extends BasicFileAttributes> A readAttributes(Path path, Class<A> type, LinkOption... options) throws IOException {
-        return wrap(defaultProvider.readAttributes(unwrap(path), type, options));
-    }
-
-    @Override
-    public Map<String, Object> readAttributes(Path path, String attributes, LinkOption... options) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public void setAttribute(Path path, String attribute, Object value, LinkOption... options) throws IOException {
-        if (prohibitFileTreeModifications) {
-            throw new AccessDeniedException(path.toString(), null, "Test: All file tree modifications are prohibited");
-        }
-        defaultProvider.setAttribute(unwrap(path), attribute, value, options);
-    }
-
-    @Override
-    public boolean exists(Path path, LinkOption... options) {
-        return defaultProvider.exists(unwrap(path), options);
-    }
-
-    @Override
-    public void createSymbolicLink(Path link, Path target, FileAttribute<?>... attrs) throws IOException {
-        if (prohibitFileTreeModifications) {
-            throw new AccessDeniedException(link.toString(), null, "Test: All file tree modifications are prohibited");
-        }
-        defaultProvider.createSymbolicLink(unwrap(link), unwrap(target), attrs);
-    }
-
-    private <A extends BasicFileAttributes> A wrap(A attrs) {
-        if (attrs instanceof DosFileAttributes dosAttrs) {
-            return (A) new ManglingDosFileAttributes(dosAttrs);
-        }
-        if (attrs instanceof PosixFileAttributes posixAttrs) {
-            return (A) new ManglingPosixFileAttributes(posixAttrs);
-        }
-        if (attrs instanceof BasicFileAttributes basicAttrs) {
-            return (A) new ManglingBasicFileAttributes(basicAttrs);
-        }
-        return attrs;
-    }
-
-    private <V extends FileAttributeView> V wrap(V view) {
-        if (view instanceof DosFileAttributeView dosView) {
-            return (V) new ManglingDosFileAttributeView(dosView);
-        }
-        if (view instanceof PosixFileAttributeView posixView) {
-            return (V) new ManglingPosixFileAttributeView(posixView);
-        }
-        if (view instanceof BasicFileAttributeView basicView) {
-            return (V) new ManglingBasicFileAttributeView(basicView);
-        }
-        return view;
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingPath.java

@@ -1,184 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.net.URI;
-import java.nio.file.FileSystem;
-import java.nio.file.LinkOption;
-import java.nio.file.Path;
-import java.nio.file.WatchEvent;
-import java.nio.file.WatchKey;
-import java.nio.file.WatchService;
-import java.util.Objects;
-
-public class ManglingPath implements Path {
-    final Path delegate;
-    private final ManglingFileSystem fileSystem;
-
-    ManglingPath(ManglingFileSystem fileSystem, Path delegate) {
-        this.fileSystem = fileSystem;
-        this.delegate = Objects.requireNonNull(delegate);
-    }
-
-    @Override
-    public boolean equals(Object o) {
-        if (o == null || getClass() != o.getClass()) return false;
-        ManglingPath paths = (ManglingPath) o;
-        return Objects.equals(fileSystem, paths.fileSystem) && Objects.equals(delegate, paths.delegate);
-    }
-
-    @Override
-    public int hashCode() {
-        return Objects.hash(fileSystem, delegate);
-    }
-
-    @Override
-    public String toString() {
-        if (!ManglingFileSystemProvider.manglePaths) {
-            return delegate.toString();
-        } else if (!ManglingFileSystemProvider.mangleOnlyFileName) {
-            return ManglingFileSystemProvider.mangle(delegate.toString());
-        } else if (delegate.getParent() == null) {
-            return ManglingFileSystemProvider.mangle(delegate.toString());
-        } else {
-            String mangledFileName = ManglingFileSystemProvider.mangle(delegate.getFileName().toString());
-            return delegate.getParent().resolve(mangledFileName).toString();
-        }
-    }
-
-    @Override
-    public FileSystem getFileSystem() {
-        return fileSystem;
-    }
-
-    @Override
-    public boolean isAbsolute() {
-        return delegate.isAbsolute();
-    }
-
-    @Override
-    public Path getRoot() {
-        Path delegateRoot = delegate.getRoot();
-        if (delegateRoot == null) {
-            return null;
-        }
-        return new ManglingPath(fileSystem, delegateRoot);
-    }
-
-    @Override
-    public Path getFileName() {
-        return new ManglingPath(fileSystem, delegate.getFileName());
-    }
-
-    @Override
-    public Path getParent() {
-        Path parent = delegate.getParent();
-        if (parent != null) {
-            return new ManglingPath(fileSystem, parent);
-        } else {
-            return null;
-        }
-    }
-
-    @Override
-    public int getNameCount() {
-        return delegate.getNameCount();
-    }
-
-    @Override
-    public Path getName(int index) {
-        return new ManglingPath(fileSystem, delegate.getName(index));
-    }
-
-    @Override
-    public Path subpath(int beginIndex, int endIndex) {
-        return new ManglingPath(fileSystem, delegate.subpath(beginIndex, endIndex));
-    }
-
-    @Override
-    public boolean startsWith(Path other) {
-        if (other instanceof ManglingPath pcp) {
-            return delegate.startsWith(pcp.delegate);
-        }
-        throw new IllegalArgumentException("Wrong path " + other + " (class: " + other.getClass() + ")");
-    }
-
-    @Override
-    public boolean endsWith(Path other) {
-        if (other instanceof ManglingPath pcp) {
-            return delegate.endsWith(pcp.delegate);
-        }
-        throw new IllegalArgumentException("Wrong path " + other + " (class: " + other.getClass() + ")");
-    }
-
-    @Override
-    public Path normalize() {
-        return new ManglingPath(fileSystem, delegate.normalize());
-    }
-
-    @Override
-    public Path resolve(Path other) {
-        if (other instanceof ManglingPath pcp) {
-            return new ManglingPath(fileSystem, delegate.resolve(pcp.delegate));
-        }
-        throw new IllegalArgumentException("Wrong path " + other + " (class: " + other.getClass() + ")");
-    }
-
-    @Override
-    public Path relativize(Path other) {
-        if (other instanceof ManglingPath pcp) {
-            return new ManglingPath(fileSystem, delegate.relativize(pcp.delegate));
-        }
-        throw new IllegalArgumentException("Wrong path " + other + " (class: " + other.getClass() + ")");
-    }
-
-    @Override
-    public URI toUri() {
-        return delegate.toUri();
-    }
-
-    @Override
-    public Path toAbsolutePath() {
-        return new ManglingPath(fileSystem, delegate.toAbsolutePath());
-    }
-
-    @Override
-    public Path toRealPath(LinkOption... options) throws IOException {
-        return new ManglingPath(fileSystem, delegate.toRealPath(options));
-    }
-
-    @Override
-    public WatchKey register(WatchService watcher, WatchEvent.Kind<?>[] events, WatchEvent.Modifier... modifiers) throws IOException {
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    public int compareTo(Path other) {
-        if (other instanceof ManglingPath pcp) {
-            return delegate.compareTo(pcp.delegate);
-        }
-        return -1;
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingPosixFileAttributeView.java

@@ -1,70 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.io.IOException;
-import java.nio.file.AccessDeniedException;
-import java.nio.file.attribute.GroupPrincipal;
-import java.nio.file.attribute.PosixFileAttributeView;
-import java.nio.file.attribute.PosixFileAttributes;
-import java.nio.file.attribute.PosixFilePermission;
-import java.nio.file.attribute.UserPrincipal;
-import java.util.Set;
-
-class ManglingPosixFileAttributeView extends ManglingBasicFileAttributeView implements PosixFileAttributeView {
-    private final PosixFileAttributeView view;
-
-    ManglingPosixFileAttributeView(PosixFileAttributeView view) {
-        super(view);
-        this.view = view;
-    }
-
-    @Override
-    public PosixFileAttributes readAttributes() throws IOException {
-        return new ManglingPosixFileAttributes(view.readAttributes());
-    }
-
-    @Override
-    public void setPermissions(Set<PosixFilePermission> perms) throws IOException {
-        if (ManglingFileSystemProvider.prohibitFileTreeModifications) {
-            throw new AccessDeniedException(null, null, "Test: Prohibiting file tree modifications");
-        }
-        view.setPermissions(perms);
-    }
-
-    @Override
-    public void setGroup(GroupPrincipal group) throws IOException {
-        view.setGroup(group);
-    }
-
-    @Override
-    public UserPrincipal getOwner() throws IOException {
-        return view.getOwner();
-    }
-
-    @Override
-    public void setOwner(UserPrincipal owner) throws IOException {
-        view.setOwner(owner);
-    }
-}

test/jdk/jb/java/io/IoOverNio/testNio/ManglingPosixFileAttributes.java

@@ -1,57 +0,0 @@
-/*
- * Copyright 2025 JetBrains s.r.o.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package testNio;
-
-import java.nio.file.attribute.GroupPrincipal;
-import java.nio.file.attribute.PosixFileAttributes;
-import java.nio.file.attribute.PosixFilePermission;
-import java.nio.file.attribute.UserPrincipal;
-import java.util.Set;
-
-class ManglingPosixFileAttributes extends ManglingBasicFileAttributes implements PosixFileAttributes {
-    private final PosixFileAttributes attrs;
-
-    ManglingPosixFileAttributes(PosixFileAttributes attrs) {
-        super(attrs);
-        this.attrs = attrs;
-    }
-
-    @Override
-    public UserPrincipal owner() {
-        return attrs.owner();
-    }
-
-    @Override
-    public GroupPrincipal group() {
-        return attrs.group();
-    }
-
-    @Override
-    public Set<PosixFilePermission> permissions() {
-        if (ManglingFileSystemProvider.denyAccessToEverything) {
-            return Set.of();
-        }
-        return attrs.permissions();
-    }
-}

test/jdk/jbProblemList.txt

@@ -688,6 +688,7 @@ java/awt/xembed/server/RunTestXEmbed.java 7034201 linux-all
 java/awt/Modal/ModalFocusTransferTests/FocusTransferDialogsDocModalTest.java 8164473 linux-all
 java/awt/Frame/DecoratedFrameInsets/DecoratedFrameInsetsTest.java JBR-5205 linux-5.4.0-1103-aws
 java/awt/Frame/DisposeParentGC/DisposeParentGC.java 8079786 macosx-all
+java/awt/Frame/DisposeTest.java JBR-7937 macosx-aarch64
 
 java/awt/GraphicsDevice/CheckDisplayModes.java 8266242,JBR-8183 macosx-aarch64,macosx-x64
 java/awt/GraphicsDevice/DisplayModes/CycleDMImage.java 7099223,8274106 macosx-all,linux-all,windows-all
@@ -1022,6 +1023,7 @@ javax/swing/JMenuItem/bug4839464.java JBR-5911 windows-all
 javax/swing/JMenuItem/6249972/bug6249972.java 8197552 windows-all
 javax/swing/JOptionPane/7138665/bug7138665.java JBR-5799 windows-all
 javax/swing/JOptionPane/8081019/bug8081019.java JBR-5767 windows-all
+javax/swing/JPasswordField/TestSelectedTextBackgroundColor.java JBR-5510,JBR-8665 linux-5.18.2-arch1-1,linux-6.8.0-1017-raspi
 javax/swing/JProgressBar/8015748/JProgressBarOrientationRobotTest.java JBR-8571 linux-all
 javax/swing/JPopupMenu/4634626/bug4634626.java 8253184 windows-all
 javax/swing/JPopupMenu/4760494/bug4760494.java 8253184 windows-all
@@ -1126,6 +1128,7 @@ javax/swing/plaf/metal/MetalGradient/8163193/ButtonGradientTest.java 8253184,JBR
 javax/swing/plaf/synth/7158712/bug7158712.java JBR-125,8322653 linux-all,windows-all,macosx-all
 javax/swing/plaf/synth/SynthButtonUI/6276188/bug6276188.java 8253184,JBR-5510,JBR-803 windows-all,linux-all,macosx-all
 javax/swing/plaf/synth/SynthScrollbarThumbPainter/SynthScrollbarThumbPainterTest.java 8253184 windows-all
+javax/swing/plaf/synth/Test6660049.java JBR-8397 windows-all
 javax/swing/plaf/synth/Test8043627.java JBR-5767 windows-all
 javax/swing/JInternalFrame/5066752/bug5066752.java 8253184,JBR-5510 windows-all,linux-5.18.2-arch1-1
 javax/swing/JInternalFrame/8160248/JInternalFrameDraggingTest.java JBR-5510,JBR-6546 linux-5.18.2-arch1-1,windows-x64
@@ -1323,6 +1326,7 @@ java/awt/Focus/RequestFocusByCause/RequestFocusByCauseTest.java JBR-6335 linux-a
 java/awt/Focus/RequestOnCompWithNullParent/RequestOnCompWithNullParent1.java JBR-6507 linux-all
 java/awt/Focus/RemoveAfterRequest/RemoveAfterRequest.java JBR-6052 macosx-all,linux-all
 java/awt/FullScreen/TranslucentWindow/TranslucentWindow.java 8258103,8253184 linux-all,windows-all
+java/awt/List/HandlingKeyEventIfMousePressedTest.java 6848358 macosx-all,windows-all
 
 com/sun/jndi/dns/ConfigTests/Timeout.java 8220213 generic-all
 
@@ -1391,6 +1395,7 @@ javax/swing/JSpinner/8223788/JSpinnerButtonFocusTest.java JBR-5210 windows-all
 javax/swing/JSpinner/JSpinnerFocusTest.java JBR-5288 windows-all
 javax/swing/JSpinner/SpinnerTest.java JBR-4880 windows-all
 javax/swing/JSpinner/TestJSpinnerFocusLost.java JBR-5210 windows-all
+javax/swing/JSpinner/TestSelectedTextBackgroundColor.java JBR-5510,JBR-8665 linux-5.18.2-arch1-1,linux-6.8.0-1017-raspi
 javax/swing/JTable/7068740/bug7068740.java 8197552,JBR-6680 windows-all,linux-all
 javax/swing/JTable/7124218/SelectEditTableCell.java JBR-6679 linux-all,windows-all
 javax/swing/JTable/8236907/LastVisibleRow.java JBR-6066 generic-all
@@ -1511,7 +1516,7 @@ javax/swing/LookAndFeel/8145547/DemandGTK3.sh JBR-5510 linux-5.18.2-arch1-1
 jb/java/awt/Focus/BrokenTraversalAWT.java JBR-5799 windows-all
 jb/java/awt/Focus/ComplexFocusSequence.java JBR-6728 linux-all,windows-x64
 jb/java/awt/Focus/ContextMenuAfterPopup.java JBR-5799 windows-all
-jb/java/awt/Focus/FileDialogClosing.java JBR-8309 macosx-x64
+jb/java/awt/Focus/FileDialogClosing.java JBR-8309 macosx-x64,windows-all
 jb/java/awt/Focus/FocusTraversalOrderTest.java JBR-6060 generic-all
 jb/java/awt/Focus/PopupIncomingFocusTest.java JBR-5799 windows-all
 jb/java/awt/Focus/TitleBarClickTest.java JBR-6394 linux-5.18.2-arch1-1,windows-all
@@ -1522,13 +1527,9 @@ java/awt/Choice/ChoiceStaysOpenedOnTAB.java JBR-5510 linux-5.18.2-arch1-1
 java/awt/Graphics/XORPaint.java#id2 JBR-5510 linux-5.18.2-arch1-1
 java/awt/Robot/HiDPIScreenCapture/ScreenCaptureGtkTest.java JBR-5510 linux-5.18.2-arch1-1
 javax/swing/JMenu/TestDisabledMenuForegroundColor.java JBR-5510 linux-5.18.2-arch1-1
-javax/swing/JPasswordField/TestSelectedTextBackgroundColor.java JBR-5510 linux-5.18.2-arch1-1
 javax/swing/JProgressBar/TestJProgressBarHighlightColor.java JBR-5510 linux-5.18.2-arch1-1
 javax/swing/JSlider/TestJSliderRendering.java JBR-5510 linux-5.18.2-arch1-1
-javax/swing/JSpinner/TestSelectedTextBackgroundColor.java JBR-5510 linux-5.18.2-arch1-1
 javax/swing/JTextPane/TestJTextPaneBackgroundColor.java JBR-5510 linux-5.18.2-arch1-1
 javax/swing/JToolTip/TestTooltipBackgroundColor.java JBR-5510 linux-5.18.2-arch1-1
 javax/swing/JTree/TestTreeBackgroundColor.java JBR-5510 linux-5.18.2-arch1-1
 sun/java2d/ClassCastExceptionForInvalidSurface.java JBR-5510 linux-5.18.2-arch1-1
-
-java/io/File/CheckPermission.java JBR-7700 linux-all,windows-all,macosx-all

test/jdk/jbScale2ProblemList.txt

@@ -202,7 +202,7 @@ sun/java2d/pipe/InterpolationQualityTest.java nobug generic-all
 java/awt/event/ComponentEvent/TextComponentTextEventTest.java JBR-6287 windows-all
 
 jb/java/awt/Focus/ComplexFocusSequence.java JBR-6728 linux-all,windows-x64
-jb/java/awt/Focus/FileDialogClosing.java JBR-5799 windows-all
+jb/java/awt/Focus/FileDialogClosing.java JBR-8309,JBR-5799 macosx-x64,windows-all
 jb/java/awt/Focus/ModalDialogFromMenuTest.java JBR-5799 windows-all
 jb/java/awt/Focus/ModalDialogOverSiblingTest.java                                   JBR-5716 windows-all
 jb/java/awt/Focus/PopupFromMenuTest.java JBR-5799 windows-all

test/jdk/jbWaylandProblemList.txt

@@ -1,5 +1,6 @@
 java/awt/font/ComplexEmoji.java JBR-5009,JBR-8399 linux-aarch64,linux-x64
 java/awt/FullScreen/SetFullScreenTest.java JBR-8214,JBR-8400 linux-5.18.2-arch1-1,linux-x64
+java/awt/MenuShortcut/FunctionKeyShortcut.java JBR-7932 linux-all
 java/awt/Multiscreen/UpdateGCTest/UpdateGCTest.java JBR-8264 linux-x64
 
 java/awt/event/KeyEvent/FunctionKeyTest.java JBR-7773 linux-all

test/jdk/sun/security/util/FilePermCompat/Flag.java

@@ -26,7 +26,6 @@
  * @bug 8164705 8209901
  * @library /test/lib
  * @summary check jdk.filepermission.canonicalize
- * @run main/othervm -Djbr.java.io.use.nio=false Flag
  */
 
 import jdk.test.lib.process.Proc;
@@ -47,7 +46,6 @@ public class Flag {
                     .prop("java.security.manager", "")
                     .prop("java.security.policy", policy)
                     .prop("jdk.io.permissionsUseCanonicalPath", "true")
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "true", "true")
                     .start()
                     .waitFor(0);
@@ -55,7 +53,6 @@ public class Flag {
                     .prop("java.security.manager", "")
                     .prop("java.security.policy", policy)
                     .secprop("jdk.io.permissionsUseCanonicalPath", "true")
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "true", "true")
                     .start()
                     .waitFor(0);
@@ -64,7 +61,6 @@ public class Flag {
                     .prop("java.security.policy", policy)
                     .secprop("jdk.io.permissionsUseCanonicalPath", "false")
                     .prop("jdk.io.permissionsUseCanonicalPath", "true")
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "true", "true")
                     .start()
                     .waitFor(0);
@@ -74,7 +70,6 @@ public class Flag {
                     .prop("java.security.manager", "")
                     .prop("java.security.policy", policy)
                     .prop("jdk.io.permissionsUseCanonicalPath", "false")
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "false", "true")
                     .start()
                     .waitFor(0);
@@ -82,7 +77,6 @@ public class Flag {
                     .prop("java.security.manager", "")
                     .prop("java.security.policy", policy)
                     .secprop("jdk.io.permissionsUseCanonicalPath", "false")
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "false", "true")
                     .start()
                     .waitFor(0);
@@ -91,14 +85,12 @@ public class Flag {
                     .prop("java.security.policy", policy)
                     .secprop("jdk.io.permissionsUseCanonicalPath", "true")
                     .prop("jdk.io.permissionsUseCanonicalPath", "false")
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "false", "true")
                     .start()
                     .waitFor(0);
             Proc.create("Flag")
                     .prop("java.security.manager", "")
                     .prop("java.security.policy", policy)
-                    .prop("jbr.java.io.use.nio", "false")
                     .args("run", "false", "true")
                     .start()
                     .waitFor(0);