--- a/src/share/classes/javax/swing/JComponent.java	Tue Aug 30 14:40:05 2011 +0100
+++ b/src/share/classes/javax/swing/JComponent.java	Thu Apr 26 12:39:11 2012 +0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, 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
@@ -2636,17 +2636,16 @@
      *    attribute: visualUpdate true
      */
     public void setVisible(boolean aFlag) {
-        if(aFlag != isVisible()) {
+        if (aFlag != isVisible()) {
             super.setVisible(aFlag);
-            Container parent = getParent();
-            if(parent != null) {
-                Rectangle r = getBounds();
-                parent.repaint(r.x,r.y,r.width,r.height);
+            if (aFlag) {
+                Container parent = getParent();
+                if (parent != null) {
+                    Rectangle r = getBounds();
+                    parent.repaint(r.x, r.y, r.width, r.height);
+                }
+                revalidate();
             }
-            // Some (all should) LayoutManagers do not consider components
-            // that are not visible. As such we need to revalidate when the
-            // visible bit changes.
-            revalidate();
         }
     }
 
@@ -5564,4 +5563,21 @@
         ",preferredSize=" + preferredSizeString;
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void hide() {
+        boolean showing = isShowing();
+        super.hide();
+        if (showing) {
+            Container parent = getParent();
+            if (parent != null) {
+                Rectangle r = getBounds();
+                parent.repaint(r.x, r.y, r.width, r.height);
+            }
+            revalidate();
+        }
+    }
+
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/javax/swing/JComponent/7154030/bug7154030.java	Thu Apr 26 12:39:11 2012 +0800
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2012 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.
+ */
+
+/*
+ * Portions Copyright (c) 2012 IBM Corporation
+ */
+
+import javax.swing.JButton;
+import javax.swing.JDesktopPane;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
+import sun.awt.SunToolkit;
+
+import java.awt.AWTException;
+import java.awt.AlphaComposite;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import java.awt.image.BufferedImage;
+
+/* @test 1.1 2012/04/12
+ * @bug 7154030
+ * @summary Swing components fail to hide after calling hide()
+ * @author Jonathan Lu
+ * @library ../../regtesthelpers/
+ * @build Util
+ * @run main bug7154030
+ */
+
+public class bug7154030 {
+
+    private static JButton button = null;
+
+    public static void main(String[] args) throws Exception {
+        BufferedImage imageInit = null;
+
+        BufferedImage imageShow = null;
+
+        BufferedImage imageHide = null;
+
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+
+        Robot robot = new Robot();
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                JDesktopPane desktop = new JDesktopPane();
+                button = new JButton("button");
+                JFrame frame = new JFrame();
+
+                button.setSize(200, 200);
+                button.setLocation(100, 100);
+                button.setForeground(Color.RED);
+                button.setBackground(Color.RED);
+                button.setOpaque(true);
+                button.setVisible(false);
+                desktop.add(button);
+
+                frame.setContentPane(desktop);
+                frame.setSize(300, 300);
+                frame.setLocation(0, 0);
+                frame.setVisible(true);
+                frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+            }
+        });
+
+        toolkit.realSync();
+        imageInit = robot.createScreenCapture(new Rectangle(0, 0, 300, 300));
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                button.show();
+            }
+        });
+
+        toolkit.realSync();
+        imageShow = robot.createScreenCapture(new Rectangle(0, 0, 300, 300));
+        if (Util.compareBufferedImages(imageInit, imageShow)) {
+            throw new Exception("Failed to show opaque button");
+        }
+
+        toolkit.realSync();
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                button.hide();
+            }
+        });
+
+        toolkit.realSync();
+        imageHide = robot.createScreenCapture(new Rectangle(0, 0, 300, 300));
+
+        if (!Util.compareBufferedImages(imageInit, imageHide)) {
+            throw new Exception("Failed to hide opaque button");
+        }
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                button.setOpaque(false);
+                button.setBackground(new Color(128, 128, 0));
+                button.setVisible(false);
+            }
+        });
+
+        toolkit.realSync();
+        imageInit = robot.createScreenCapture(new Rectangle(0, 0, 300, 300));
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                button.show();
+            }
+        });
+
+        toolkit.realSync();
+        imageShow = robot.createScreenCapture(new Rectangle(0, 0, 300, 300));
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+
+            @Override
+            public void run() {
+                button.hide();
+            }
+        });
+
+        if (Util.compareBufferedImages(imageInit, imageShow)) {
+            throw new Exception("Failed to show non-opaque button");
+        }
+
+        toolkit.realSync();
+        imageHide = robot.createScreenCapture(new Rectangle(0, 0, 300, 300));
+
+        if (!Util.compareBufferedImages(imageInit, imageHide)) {
+            throw new Exception("Failed to hide non-opaque button");
+        }
+    }
+}