8013189: JMenuItems draw behind TextArea

Untie XTextAreaPeer internal components from the TextArea parent to prevent its invalidation. I.e. force the java.awt.smartInvalidate=true locally.

Reviewed-by: art, serb

jdk/src/solaris/classes/sun/awt/X11/XTextAreaPeer.java

@@ -1143,6 +1143,19 @@ class XTextAreaPeer extends XComponentPeer implements TextAreaPeer {
             addNotify();
         }
 
+        @Override
+        public void invalidate() {
+            synchronized (getTreeLock()) {
+                final Container parent = getParent();
+                AWTAccessor.getComponentAccessor().setParent(this, null);
+                try {
+                    super.invalidate();
+                } finally {
+                    AWTAccessor.getComponentAccessor().setParent(this, parent);
+                }
+            }
+        }
+
         public void focusGained(FocusEvent e) {
             Graphics g = getGraphics();
             Rectangle r = getViewportBorderBounds();

jdk/test/java/awt/TextArea/Mixing/TextAreaMixing.java

@@ -0,0 +1,99 @@
+/*
+ * 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 8013189
+ * @run main TextAreaMixing
+ * @summary TextArea should support HW/LW mixing
+ * @author anthony.petrov@oracle.com
+ */
+
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+
+public class TextAreaMixing {
+
+    private static volatile boolean menuClicked = false;
+    private static JMenuItem menuItem;
+
+    public static void main(String[] args) throws Exception {
+        // The bug is only reproducible on X11, but there's no reason
+        // for this test to not pass on any platofrm
+
+        final JFrame frame = new JFrame("JFrame");
+        frame.setLayout(new GridLayout(0, 1));
+        frame.setSize(200, 200);
+
+        JMenuBar menuBar = new JMenuBar();
+        JMenu menu = new JMenu("Test Menu");
+
+        for (int i = 0; i < 6; i++) {
+            JMenuItem mi = new JMenuItem(Integer.toString(i));
+            mi.addActionListener(new ActionListener() {
+                @Override
+                public void actionPerformed(ActionEvent e) {
+                    menuClicked = true;
+                }
+            });
+            menu.add(mi);
+
+            // Choose a random (OK, the fourth) menu item to click on
+            if (i == 3) {
+                menuItem = mi;
+            }
+        }
+        menuBar.add(menu);
+        frame.setJMenuBar(menuBar);
+
+        frame.getContentPane().add(new TextArea());
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setVisible(true);
+
+        Thread.sleep(2000);
+
+        Robot robot = new Robot();
+
+        // Open the menu
+        Point loc = menu.getLocationOnScreen();
+        robot.mouseMove(loc.x + menu.getWidth() / 2, loc.y + menu.getHeight() / 2);
+        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+        Thread.sleep(500);
+
+        // Click an item
+        loc = menuItem.getLocationOnScreen();
+        robot.mouseMove(loc.x + menuItem.getWidth() / 2, loc.y + menuItem.getHeight() / 2);
+        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
+
+        Thread.sleep(500);
+
+        frame.dispose();
+
+        if (!menuClicked) {
+            throw new RuntimeException("A menu item has never been clicked.");
+        }
+    }
+}