8012004: JInternalFrame not being finalized after closing

Reviewed-by: alexsch, alexp

src/share/classes/javax/swing/JDesktopPane.java

@@ -427,6 +427,15 @@ public class JDesktopPane extends JLayeredPane implements Accessible
         }
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void remove(Component comp) {
+        super.remove(comp);
+        updateFramesCache();
+    }
+
     /**
      * Selects the next <code>JInternalFrame</code> in this desktop pane.
      *

test/javax/swing/JInternalFrame/InternalFrameIsNotCollectedTest.java

+/*
+ * Copyright (c) 2013, 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 8012004
+    @summary JINTERNALFRAME NOT BEING FINALIZED AFTER CLOSING
+    @author mcherkas
+    @run main InternalFrameIsNotCollectedTest
+ */
+
+import sun.awt.SunToolkit;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.KeyEvent;
+import java.beans.PropertyVetoException;
+import java.util.Date;
+
+public class InternalFrameIsNotCollectedTest {
+
+    public static final int waitTime = 10000;
+    private static Robot robot;
+
+    public static void sync() {
+
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+        toolkit.realSync();
+    }
+
+    public static void main(String[] args) throws Exception {
+        initRobot();
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                initUI();
+                try {
+                    closeInternalFrame();
+                } catch (PropertyVetoException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        });
+        sync();
+        invokeGC();
+        Thread.sleep(1000); // it's better to wait 1 sec now then 10 sec later
+        Date startWaiting = new Date();
+        synchronized (CustomInternalFrame.waiter) {
+            // Sync with finalization thread.
+            Date now = new Date();
+            while (now.getTime() - startWaiting.getTime() < waitTime && !CustomInternalFrame.finalized) {
+                CustomInternalFrame.waiter.wait(waitTime);
+                now = new Date();
+            }
+        }
+        if (!CustomInternalFrame.finalized) {
+            throw new RuntimeException("Closed internal frame wasn't collected");
+        }
+    }
+
+    private static void initRobot() throws AWTException {
+        robot = new Robot();
+        robot.setAutoDelay(100);
+    }
+
+    private static void closeInternalFrame() throws PropertyVetoException {
+        robot.keyPress(KeyEvent.VK_CONTROL);
+        robot.keyPress(KeyEvent.VK_F4);
+        robot.keyRelease(KeyEvent.VK_F4);
+        robot.keyRelease(KeyEvent.VK_CONTROL);
+    }
+
+    private static void initUI() {
+        JFrame frame = new JFrame("Internal Frame Test");
+        frame.getContentPane().setLayout(new BorderLayout());
+        JDesktopPane desktopPane = new JDesktopPane();
+        desktopPane.setDesktopManager(new DefaultDesktopManager());
+        frame.getContentPane().add(desktopPane, BorderLayout.CENTER);
+
+        CustomInternalFrame iFrame = new CustomInternalFrame("Dummy Frame");
+
+        iFrame.setSize(200, 200);
+        iFrame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
+        desktopPane.add(iFrame);
+
+        frame.setSize(800, 600);
+        frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
+        frame.setVisible(true);
+        iFrame.setVisible(true);
+    }
+
+    private static void invokeGC() {
+        System.out.println("Firing garbage collection!");
+        try {
+            StringBuilder sb = new StringBuilder();
+            while (true) {
+                sb.append("any string. some test. a little bit more text." + sb.toString());
+            }
+        } catch (Throwable e) {
+            // do nothing
+        }
+    }
+
+
+    public static class CustomInternalFrame extends JInternalFrame {
+        public static volatile boolean finalized = false;
+        public static Object waiter = new Object();
+
+        public CustomInternalFrame(String title) {
+            super(title, true, true, true, true);
+        }
+
+        protected void finalize() {
+            System.out.println("Finalized!");
+            finalized = true;
+            waiter.notifyAll();
+        }
+    }
+}
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