JRE-186 added regression test (Modal dialogs (Messages) shouldn't popup IDEA when another application is active)

(cherry picked from commit 236bd38d1b)

with fix for JBR-5300 Change source code and test files to use GPL license

(cherry picked from commit 45b52492a9)

test/jdk/jb/javax/swing/JDialog/JDialog186.java

@@ -0,0 +1,199 @@
+/*
+ * Copyright 2000-2023 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.
+ */
+
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowFocusListener;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import javax.swing.JDialog;
+import javax.swing.JEditorPane;
+import javax.swing.JFrame;
+import javax.swing.JTextArea;
+import javax.swing.KeyStroke;
+import javax.swing.SwingUtilities;
+import javax.swing.WindowConstants;
+
+/* @test
+ * @summary regression test on JRE-186 Modal dialogs (Messages) shouldn't popup IDEA when another application is active
+ * @run main/othervm/timeout=360 JDialog186
+ */
+
+public class JDialog186 {
+
+    private static JFrame frame = new JFrame("JDialog186");
+    private static JDialog dialog;
+    private static Process process;
+    static final Object lock = new Object();
+
+    private static Runnable modalDialogThread = new Runnable() {
+        @Override
+        public void run() {
+            dialog = new JDialog(frame, true);
+            dialog.setTitle("Modal input");
+            dialog.getContentPane().add(new JTextArea());
+            dialog.setLocation(new Point(20, 100));
+            dialog.setSize(350, 100);
+            dialog.setVisible(true);
+        }
+    };
+
+    private static MainWindowFocusListener focusListener = new MainWindowFocusListener();
+    private static String javaExecutable = System.getProperty("java.home") + File.separatorChar + "bin" + File.separatorChar + "java";
+
+
+    static class MainWindowFocusListener implements WindowFocusListener {
+        @Override
+        public void windowGainedFocus(WindowEvent windowEvent) {
+            synchronized (lock) {
+                lock.notifyAll();
+            }
+        }
+
+        @Override
+        public void windowLostFocus(WindowEvent windowEvent) {
+            frame.removeWindowFocusListener(focusListener);
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException ignored) {
+
+            }
+            synchronized (lock) {
+                lock.notifyAll();
+            }
+        }
+    }
+
+    private static void checkAuxProcess() {
+        new Thread(() -> {
+            try {
+                process.waitFor();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+
+            process.getErrorStream();
+            String line;
+            BufferedReader input = new BufferedReader(new InputStreamReader(process.getErrorStream()));
+            try {
+                while ((line = input.readLine()) != null) {
+                    System.out.println(line);
+                }
+                input.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            if (process.exitValue() == 1) {
+                System.err.println("Error: Could not launch auxiliary application");
+                System.exit(1);
+            }
+        }).start();
+    }
+
+    public static void main(String[] args) throws Exception {
+        frame.setSize(400, 400);
+        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+
+        try {
+            frame.addWindowFocusListener(focusListener);
+            frame.setVisible(true);
+            synchronized (lock) {
+                while (!frame.isFocused()) {
+                    try {
+                        lock.wait();
+                    } catch (InterruptedException ignored) {
+                    }
+                }
+            }
+
+            System.out.println("launching helper");
+            process = Runtime.getRuntime().exec(new String[]{javaExecutable, "-classpath",
+                    System.getProperty("java.class.path"), "JDialog186Aux"});
+            checkAuxProcess();
+
+            synchronized (lock) {
+                while (frame.isFocused()) {
+                    try {
+                        lock.wait();
+                    } catch (InterruptedException ignored) {
+                    }
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            throw new RuntimeException();
+        }
+
+        SwingUtilities.invokeLater(modalDialogThread);
+        process.waitFor();
+        dialog.dispose();
+        frame.dispose();
+
+        if (process.exitValue() == 19) throw new RuntimeException("Modal Dialog expects TextArea to be empty");
+    }
+}
+
+class JDialog186Aux {
+
+    private static final char[] expectedText = ",-./0123456789;=ABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();
+
+    private static JDialog186.MainWindowFocusListener focusListener = new JDialog186.MainWindowFocusListener();
+
+    public static void main(String[] args) throws Exception {
+        Robot robot = new Robot();
+        robot.setAutoDelay(100);
+
+        JFrame frame = new JFrame("JDialog186Aux");
+        frame.addWindowFocusListener(focusListener);
+        JEditorPane editorPane = new JEditorPane();
+
+        frame.getContentPane().add(editorPane);
+        frame.setLocation(new Point(400, 0));
+        frame.setSize(350, 100);
+        frame.addWindowFocusListener(focusListener);
+        frame.setVisible(true);
+
+        synchronized (JDialog186.lock) {
+            while (!frame.isFocused()) {
+                try {
+                    JDialog186.lock.wait();
+                } catch (InterruptedException ignored) {
+
+                }
+            }
+        }
+        int keyCode;
+        for (char c : expectedText) {
+            keyCode = KeyStroke.getKeyStroke((c), 0).getKeyCode();
+            robot.keyPress(keyCode);
+            robot.keyRelease(keyCode);
+        }
+
+        frame.dispose();
+
+        if (!editorPane.getText().equals(new String(expectedText).toLowerCase())) System.exit(19);
+    }
+}