8306466: Open source more AWT Drag & Drop related tests

Reviewed-by: prr

test/jdk/java/awt/dnd/RejectDragDropActionTest.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2003, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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
+  @bug 4774532
+  @summary tests that DropTargetDragEvent.getDropAction() returns correct value
+           after DropTargetDragEvent.rejectDrag()
+  @key headful
+  @run main RejectDragDropActionTest
+*/
+
+import java.awt.AWTException;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.datatransfer.StringSelection;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragGestureRecognizer;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetAdapter;
+import java.awt.dnd.DropTargetDragEvent;
+import java.awt.dnd.DropTargetDropEvent;
+import java.awt.dnd.DropTargetListener;
+import java.awt.event.InputEvent;
+import java.lang.reflect.InvocationTargetException;
+
+
+public class RejectDragDropActionTest {
+
+    private static volatile boolean incorrectActionDetected = false;
+
+    private static final int FRAME_ACTIVATION_TIMEOUT = 3000;
+
+    private static Frame frame;
+    private static DragSource ds;
+    private static DragGestureListener dgl;
+    private static DragGestureRecognizer dgr;
+    private final DropTargetListener dtl = new DropTargetAdapter() {
+            public void dragEnter(DropTargetDragEvent dtde) {
+                dtde.rejectDrag();
+            }
+            public void dragOver(DropTargetDragEvent dtde) {
+                if (dtde.getDropAction() == DnDConstants.ACTION_NONE) {
+                    incorrectActionDetected = true;
+                }
+            }
+            public void drop(DropTargetDropEvent dtde) {
+                dtde.rejectDrop();
+            }
+        };
+    private final DropTarget dt = new DropTarget(frame, dtl);
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException, AWTException {
+        EventQueue.invokeAndWait(() -> {
+            frame = new Frame("RejectDragDropActionTest");
+            ds = DragSource.getDefaultDragSource();
+            dgl = dge -> dge.startDrag(null, new StringSelection("OOKK"));
+            dgr = ds.createDefaultDragGestureRecognizer(frame, DnDConstants.ACTION_COPY, dgl);
+            frame.setBounds(100, 100, 200, 200);
+            frame.setVisible(true);
+        });
+
+        try {
+            Robot robot = new Robot();
+            robot.waitForIdle();
+            robot.delay(FRAME_ACTIVATION_TIMEOUT);
+
+            Point startPoint = frame.getLocationOnScreen();
+            Point endPoint = new Point(startPoint);
+            startPoint.translate(50, 50);
+            endPoint.translate(150, 150);
+
+            robot.mouseMove(startPoint.x, startPoint.y);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            for (Point p = new Point(startPoint); !p.equals(endPoint);
+                 p.translate(sign(endPoint.x - p.x),
+                         sign(endPoint.y - p.y))) {
+                robot.mouseMove(p.x, p.y);
+                robot.delay(50);
+            }
+
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+
+        if (incorrectActionDetected) {
+            throw new RuntimeException("User action reported incorrectly.");
+        }
+    }
+
+    public static int sign(int n) {
+        return n < 0 ? -1 : n == 0 ? 0 : 1;
+    }
+}

test/jdk/java/awt/dnd/RemoveDragSourceListenerTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2002, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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
+  @bug 4530216
+  @summary tests that DragSourceListeners are properly removed
+  @key headful
+  @run main RemoveDragSourceListenerTest
+*/
+
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragSourceAdapter;
+import java.awt.dnd.DragSourceListener;
+import java.awt.dnd.DragSourceMotionListener;
+
+
+public class RemoveDragSourceListenerTest {
+    public static void main(String[] args) {
+        class TestDragSourceAdapter extends DragSourceAdapter {}
+
+        final DragSource dragSource = DragSource.getDefaultDragSource();
+
+        final DragSourceAdapter listeners[] = {
+                new TestDragSourceAdapter(),
+                new TestDragSourceAdapter(),
+                new TestDragSourceAdapter() // should be three or more listeners
+        };
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.addDragSourceListener(listeners[i]);
+        }
+
+        DragSourceListener[] dragSourceListeners =
+                dragSource.getDragSourceListeners();
+
+        if (dragSourceListeners.length != listeners.length) {
+            throw new RuntimeException("Unexpected length: " +
+                    dragSourceListeners.length);
+        }
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.removeDragSourceListener(listeners[i]);
+        }
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.addDragSourceMotionListener(listeners[i]);
+        }
+
+        DragSourceMotionListener[] dragSourceMotionListeners =
+                dragSource.getDragSourceMotionListeners();
+
+        if (dragSourceMotionListeners.length != listeners.length) {
+            throw new RuntimeException("Unexpected length: " +
+                    dragSourceMotionListeners.length);
+        }
+
+        for (int i = 0; i < listeners.length; i++) {
+            dragSource.removeDragSourceMotionListener(listeners[i]);
+        }
+    }
+}

test/jdk/java/awt/dnd/RemoveParentChildDropTargetTest.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2001, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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
+  @bug 4411368
+  @summary tests the app doesn't crash if the child drop target is removed
+           after the parent drop target is removed
+  @key headful
+  @run main RemoveParentChildDropTargetTest
+*/
+
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Label;
+import java.awt.Panel;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetAdapter;
+import java.awt.dnd.DropTargetDropEvent;
+import java.lang.reflect.InvocationTargetException;
+
+
+public class RemoveParentChildDropTargetTest {
+
+    static Frame frame;
+    static Panel panel;
+    static Label label;
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException {
+        EventQueue.invokeAndWait(() -> {
+            frame = new Frame("RemoveParentChildDropTargetTest");
+            panel = new Panel();
+            label = new Label("Label");
+            panel.add(label);
+            frame.add(panel);
+            frame.pack();
+
+            panel.setDropTarget(new DropTarget(panel, new DropTargetAdapter() {
+                public void drop(DropTargetDropEvent dtde) {}
+            }));
+            label.setDropTarget(new DropTarget(label, new DropTargetAdapter() {
+                public void drop(DropTargetDropEvent dtde) {}
+            }));
+            panel.setDropTarget(null);
+            frame.setVisible(true);
+
+            label.setDropTarget(null);
+        });
+
+        EventQueue.invokeAndWait(() -> {
+            if (frame != null) {
+                frame.dispose();
+            }
+        });
+    }
+}

test/jdk/java/awt/dnd/SameJVMModalDialogDeadlockTest.java

@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2002, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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
+  @bug 4484572 4645584
+  @summary verifies that showing a modal dialog during the drag operation
+           in the same JVM doesn't cause hang
+  @key headful
+  @run main SameJVMModalDialogDeadlockTest
+*/
+
+import java.awt.AWTEvent;
+import java.awt.AWTException;
+import java.awt.Component;
+import java.awt.Dialog;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.datatransfer.StringSelection;
+import java.awt.datatransfer.Transferable;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragSourceAdapter;
+import java.awt.dnd.DragSourceDragEvent;
+import java.awt.dnd.DragSourceDropEvent;
+import java.awt.event.AWTEventListener;
+import java.awt.event.InputEvent;
+import java.awt.event.MouseEvent;
+import java.lang.reflect.InvocationTargetException;
+
+
+public class SameJVMModalDialogDeadlockTest implements AWTEventListener {
+
+    Frame frame;
+    boolean shown = false;
+    boolean finished = false;
+
+    final DragSource dragSource = DragSource.getDefaultDragSource();
+    final Transferable transferable = new StringSelection("TEXT");
+    final DragSourceAdapter dragSourceAdapter = new DragSourceAdapter() {
+        public void dragDropEnd(DragSourceDropEvent dsde) {
+            finished = true;
+        }
+        public void dragMouseMoved(DragSourceDragEvent dsde) {
+            if (shown) {
+                return;
+            }
+
+            shown = true;
+            final Dialog d = new Dialog(frame, "Dialog");
+            d.setModal(true);
+
+            Runnable r1 = () -> d.setVisible(true);
+            new Thread(r1).start();
+        }
+    };
+    final DragGestureListener dragGestureListener = dge ->
+            dge.startDrag(null, transferable);
+
+    static final Object SYNC_LOCK = new Object();
+    static final int FRAME_ACTIVATION_TIMEOUT = 3000;
+    static final int DROP_COMPLETION_TIMEOUT = 5000;
+    static final int MOUSE_RELEASE_TIMEOUT = 1000;
+
+    Component clickedComponent = null;
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException, AWTException {
+        SameJVMModalDialogDeadlockTest sameJVMModalDialogDeadlockTest =
+                new SameJVMModalDialogDeadlockTest();
+        EventQueue.invokeAndWait(sameJVMModalDialogDeadlockTest::init);
+        sameJVMModalDialogDeadlockTest.start();
+    }
+
+    public void init() {
+        frame = new Frame("SameJVMModalDialogDeadlockTest");
+        frame.setTitle("Test frame");
+        frame.setBounds(100, 100, 200, 200);
+        dragSource.createDefaultDragGestureRecognizer(frame,
+                DnDConstants.ACTION_COPY_OR_MOVE, dragGestureListener);
+
+        dragSource.addDragSourceMotionListener(dragSourceAdapter);
+        dragSource.addDragSourceListener(dragSourceAdapter);
+
+        frame.getToolkit().addAWTEventListener(this, AWTEvent.MOUSE_EVENT_MASK);
+        frame.setVisible(true);
+    }
+
+    public void start() throws AWTException, InterruptedException,
+            InvocationTargetException {
+        try {
+            final Robot robot = new Robot();
+            robot.waitForIdle();
+            robot.delay(FRAME_ACTIVATION_TIMEOUT);
+
+            final Point srcPoint = frame.getLocationOnScreen();
+            Dimension d = frame.getSize();
+            srcPoint.translate(d.width / 2, d.height / 2);
+
+            if (!pointInComponent(robot, srcPoint, frame)) {
+                System.err.println("WARNING: Couldn't locate source frame.");
+                return;
+            }
+
+            final Point dstPoint = new Point(srcPoint);
+            dstPoint.translate(d.width / 4, d.height / 4);
+
+            robot.mouseMove(srcPoint.x, srcPoint.y);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            for (;!srcPoint.equals(dstPoint);
+                 srcPoint.translate(sign(dstPoint.x - srcPoint.x),
+                         sign(dstPoint.y - srcPoint.y))) {
+                robot.mouseMove(srcPoint.x, srcPoint.y);
+                robot.delay(50);
+            }
+
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+            robot.delay(DROP_COMPLETION_TIMEOUT);
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (frame != null) {
+                    frame.dispose();
+                }
+            });
+        }
+
+        if (!finished) {
+            throw new RuntimeException("DnD not completed");
+        }
+    }
+
+    public static int sign(int n) {
+        return n < 0 ? -1 : n == 0 ? 0 : 1;
+    }
+
+    public void reset() {
+        clickedComponent = null;
+    }
+
+    public void eventDispatched(AWTEvent e) {
+        if (e.getID() == MouseEvent.MOUSE_RELEASED) {
+            clickedComponent = (Component)e.getSource();
+            synchronized (SYNC_LOCK) {
+                SYNC_LOCK.notifyAll();
+            }
+        }
+    }
+
+    boolean pointInComponent(Robot robot, Point p, Component comp)
+      throws InterruptedException {
+        robot.waitForIdle();
+        reset();
+        robot.mouseMove(p.x, p.y);
+        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+        synchronized (SYNC_LOCK) {
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+            SYNC_LOCK.wait(MOUSE_RELEASE_TIMEOUT);
+        }
+
+        Component c = clickedComponent;
+
+        while (c != null && c != comp) {
+            c = c.getParent();
+        }
+
+        return c == comp;
+    }
+}

test/jdk/java/awt/dnd/SkipDropCompleteTest/SkipDropCompleteTest.java

@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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
+  @bug 4187912
+  @summary Test that incorrectly written DnD code cannot hang the app
+  @key headful
+  @run main SkipDropCompleteTest
+*/
+
+import java.awt.AWTException;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.event.InputEvent;
+import java.lang.reflect.InvocationTargetException;
+
+
+public class SkipDropCompleteTest {
+    SourceFrame sourceFrame;
+    TargetFrame targetFrame;
+    Point sourceLoc;
+    Point targetLoc;
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException, AWTException {
+        SkipDropCompleteTest skipDropCompleteTest = new SkipDropCompleteTest();
+        EventQueue.invokeAndWait(skipDropCompleteTest::init);
+        skipDropCompleteTest.start();
+    }
+
+    public void init() {
+        sourceFrame = new SourceFrame();
+        targetFrame = new TargetFrame();
+
+        sourceLoc = sourceFrame.getLocation();
+        Dimension sourceSize = sourceFrame.getSize();
+        sourceLoc.x += sourceSize.width / 2;
+        sourceLoc.y += sourceSize.height / 2;
+
+        targetLoc = targetFrame.getLocation();
+        Dimension targetSize = targetFrame.getSize();
+        targetLoc.x += targetSize.width / 2;
+        targetLoc.y += targetSize.height / 2;
+    }
+
+    public void start() throws AWTException, InterruptedException,
+            InvocationTargetException {
+        try {
+            Robot robot = new Robot();
+            robot.setAutoWaitForIdle(true);
+            robot.delay(1000);
+            robot.mouseMove(sourceLoc.x, sourceLoc.y);
+            robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+            for (;!sourceLoc.equals(targetLoc);
+                 sourceLoc.translate(sign(targetLoc.x - sourceLoc.x),
+                                     sign(targetLoc.y - sourceLoc.y))) {
+                robot.mouseMove(sourceLoc.x, sourceLoc.y);
+                Thread.sleep(10);
+            }
+            robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (sourceFrame != null) {
+                    sourceFrame.dispose();
+                }
+                if (targetFrame != null) {
+                    targetFrame.dispose();
+                }
+            });
+        }
+
+        System.out.println("test passed");
+    }
+
+    public static int sign(int n) {
+        return n < 0 ? -1 : n == 0 ? 0 : 1;
+    }
+}

test/jdk/java/awt/dnd/SkipDropCompleteTest/SourceFrame.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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.
+ */
+
+import java.awt.Color;
+import java.awt.Frame;
+import java.awt.TextArea;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.DragGestureListener;
+import java.awt.dnd.DragSource;
+import java.awt.dnd.DragSourceDragEvent;
+import java.awt.dnd.DragSourceDropEvent;
+import java.awt.dnd.DragSourceEvent;
+import java.awt.dnd.DragSourceListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+
+public class SourceFrame extends Frame
+        implements DragSourceListener,DragGestureListener {
+
+    DragSource dragSource;
+    TransferableObject transferableObject;
+        TextArea textArea;
+
+    public SourceFrame() {
+
+        super("SkipDropCompleteTest Source Frame");
+
+        dragSource = new DragSource();
+        textArea = new TextArea("Drag the Text from the SourceFrame\n" +
+            "and drop it on the TextArea in the\n" +
+            "Target Frame.\n" +
+            "Try to do some operation, like closing\n" +
+            "of the frame.\n"+
+            "See whether the application hangs.");
+        add(textArea);
+
+        dragSource.createDefaultDragGestureRecognizer(textArea, DnDConstants.ACTION_COPY, this);
+
+        addWindowListener(new WindowAdapter() {
+                public void windowClosing(WindowEvent e) {
+                        System.exit(0);
+                }
+        });
+
+        setSize(250,250);
+                setLocation(50,50);
+                setBackground(Color.red);
+                this.setVisible(true);
+    }
+
+    public void dragEnter(DragSourceDragEvent dsde) { }
+
+    public void dragOver(DragSourceDragEvent dsde) { }
+
+    public void dragExit(DragSourceEvent dse) { }
+
+    public void dropActionChanged(DragSourceDragEvent dsde ) { }
+
+    public void dragDropEnd(DragSourceDropEvent dsde) { }
+
+    public void dragGestureRecognized(DragGestureEvent dge) {
+        transferableObject = new TransferableObject(textArea.getText());
+        dragSource.startDrag(dge, DragSource.DefaultCopyDrop,
+                transferableObject, this);
+    }
+}

test/jdk/java/awt/dnd/SkipDropCompleteTest/TargetFrame.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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.
+ */
+
+import java.awt.Frame;
+import java.awt.TextArea;
+import java.awt.datatransfer.Transferable;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DropTarget;
+import java.awt.dnd.DropTargetDragEvent;
+import java.awt.dnd.DropTargetDropEvent;
+import java.awt.dnd.DropTargetEvent;
+import java.awt.dnd.DropTargetListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+
+public class TargetFrame extends Frame implements DropTargetListener{
+
+    DropTarget dropTarget;
+    TextArea textArea;
+
+    public TargetFrame() {
+        super("SkipDropCompleteTest Target Frame");
+        textArea = new TextArea();
+        add(textArea);
+
+        addWindowListener(new WindowAdapter() {
+                public void windowClosing(WindowEvent e) {
+                        System.exit(0);
+                }
+        });
+
+        setSize(250,250);
+        setLocation(350,50);
+        this.setVisible(true);
+
+        dropTarget = new DropTarget(textArea,this);
+    }
+
+    public void dragEnter(DropTargetDragEvent dtde) {
+                dtde.acceptDrag(DnDConstants.ACTION_COPY);
+        }
+
+    public void dragOver(DropTargetDragEvent dtde) {}
+
+    public void dragExit(DropTargetEvent dte) { }
+
+    public void dropActionChanged(DropTargetDragEvent dtde ) {}
+
+    public void drop(DropTargetDropEvent dtde) {
+        try {
+            Transferable transferable = dtde.getTransferable();
+            dtde.acceptDrop(DnDConstants.ACTION_MOVE);
+
+            String str = (String)transferable.getTransferData(TransferableObject.stringFlavor);
+            textArea.setText(str);
+        } catch (Exception ufException ) {
+                  ufException.printStackTrace();
+                  System.err.println( "Exception" + ufException.getMessage());
+                  dtde.rejectDrop();
+        }
+    }
+}

test/jdk/java/awt/dnd/SkipDropCompleteTest/TransferableObject.java

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
+ * 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.
+ */
+
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.util.Vector;
+
+
+public class TransferableObject implements Transferable {
+    private Object data;
+    private String stringText;
+    public static DataFlavor stringFlavor,localObjectFlavor;
+
+    static
+    {
+        // Data Flavor for Java Local Object
+        try {
+                localObjectFlavor = new DataFlavor(DataFlavor.javaJVMLocalObjectMimeType);
+                stringFlavor = DataFlavor.stringFlavor;
+        }
+        catch (ClassNotFoundException e) {
+                System.out.println("Exception " + e);
+        }
+    }
+
+    DataFlavor[] dfs;
+
+    public TransferableObject(Object data) {
+        super();
+        Vector v = new Vector();
+            if(data instanceof String) {
+                v.addElement(stringFlavor);
+                stringText = (String)data;
+            }
+            else {
+                v.addElement(localObjectFlavor);
+            }
+
+            dfs = new DataFlavor[v.size()];
+        v.copyInto(dfs);
+
+        this.data = data;
+    }
+
+    // Retrieve the data based on the flavor
+    public Object getTransferData(DataFlavor flavor)
+        throws UnsupportedFlavorException {
+
+        System.out.println("\n ***************************************");
+        System.out.println(" The Flavor passed to retrieve the data : "
+                + flavor.getHumanPresentableName());
+        System.out.println(" The Flavors supported");
+        for (int j = 0; j < dfs.length; j++)
+            System.out.println(" Flavor : " + dfs[j].getHumanPresentableName());
+
+        System.out.println(" ***************************************\n");
+
+        if (!isDataFlavorSupported(flavor)) {
+            throw new UnsupportedFlavorException(flavor);
+        } else if (flavor.equals(stringFlavor)) {
+            return stringText;
+        } else if (localObjectFlavor.isMimeTypeEqual(flavor)) {
+            return data;
+        }
+        return null;
+    }
+
+    public DataFlavor[] getTransferDataFlavors(){
+        return dfs;
+    }
+
+    public boolean isDataFlavorSupported(DataFlavor flavor) {
+        for (int i = 0 ; i < dfs.length; i++) {
+            if (dfs[i].match(flavor)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}