--- a/src/share/classes/com/sun/java/swing/SwingUtilities3.java	Mon Nov 10 11:42:30 2014 -0800
+++ b/src/share/classes/com/sun/java/swing/SwingUtilities3.java	Sat Aug 23 01:15:40 2014 +0400
@@ -27,6 +27,8 @@
 
 import sun.awt.EventQueueDelegate;
 import sun.awt.AppContext;
+import sun.awt.SunToolkit;
+
 import java.util.Collections;
 import java.util.Map;
 import java.util.WeakHashMap;
@@ -117,8 +119,8 @@
     public static RepaintManager getDelegateRepaintManager(Component
                                                             component) {
         RepaintManager delegate = null;
-        if (Boolean.TRUE == AppContext.getAppContext().get(
-                                               DELEGATE_REPAINT_MANAGER_KEY)) {
+        if (Boolean.TRUE == SunToolkit.targetToAppContext(component)
+                                      .get(DELEGATE_REPAINT_MANAGER_KEY)) {
             while (delegate == null && component != null) {
                 while (component != null
                          && ! (component instanceof JComponent)) {

--- a/src/share/classes/java/awt/Component.java	Mon Nov 10 11:42:30 2014 -0800
+++ b/src/share/classes/java/awt/Component.java	Sat Aug 23 01:15:40 2014 +0400
@@ -3394,7 +3394,7 @@
                 (width > 0) && (height > 0)) {
                 PaintEvent e = new PaintEvent(this, PaintEvent.UPDATE,
                                               new Rectangle(x, y, width, height));
-                Toolkit.getEventQueue().postEvent(e);
+                SunToolkit.postEvent(SunToolkit.targetToAppContext(this), e);
             }
         }
     }

--- a/src/share/classes/javax/swing/JComponent.java	Mon Nov 10 11:42:30 2014 -0800
+++ b/src/share/classes/javax/swing/JComponent.java	Sat Aug 23 01:15:40 2014 +0400
@@ -63,6 +63,7 @@
 import static javax.swing.ClientPropertyKey.*;
 import javax.accessibility.*;
 
+import sun.awt.SunToolkit;
 import sun.swing.SwingUtilities2;
 import sun.swing.UIClientPropertyKey;
 
@@ -4801,7 +4802,8 @@
      * @see RepaintManager#addDirtyRegion
      */
     public void repaint(long tm, int x, int y, int width, int height) {
-        RepaintManager.currentManager(this).addDirtyRegion(this, x, y, width, height);
+        RepaintManager.currentManager(SunToolkit.targetToAppContext(this))
+                      .addDirtyRegion(this, x, y, width, height);
     }
 
 
@@ -4856,7 +4858,7 @@
             // which was causing some people grief.
             return;
         }
-        if (SwingUtilities.isEventDispatchThread()) {
+        if (SunToolkit.isDispatchThreadForAppContext(this)) {
             invalidate();
             RepaintManager.currentManager(this).addInvalidComponent(this);
         }
@@ -4878,7 +4880,7 @@
                     revalidate();
                 }
             };
-            SwingUtilities.invokeLater(callRevalidate);
+            SunToolkit.executeOnEventHandlerThread(this, callRevalidate);
         }
     }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/javax/swing/JComponent/8043610/bug8043610.java	Sat Aug 23 01:15:40 2014 +0400
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2014, 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 8043610
+  @summary Tests that JComponent invalidate, revalidate and repaint methods could
+           be called from any thread
+  @author Petr Pchelko
+*/
+
+import sun.awt.SunToolkit;
+
+import javax.swing.*;
+import java.awt.*;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.atomic.AtomicReference;
+
+public class bug8043610 {
+    private static volatile JFrame frame;
+    private static volatile JComponent component;
+
+    public static void main(String[] args) throws Exception {
+        ThreadGroup stubTG = new ThreadGroup(getRootThreadGroup(), "Stub Thread Group");
+        ThreadGroup swingTG = new ThreadGroup(getRootThreadGroup(), "SwingTG");
+        try {
+            Thread stubThread = new Thread(stubTG, new Runnable() {
+                @Override
+                public void run() {
+                    SunToolkit.createNewAppContext();
+                }
+            });
+            stubThread.start();
+            stubThread.join();
+
+            final CountDownLatch startSwingLatch = new CountDownLatch(1);
+            new Thread(swingTG, new Runnable() {
+                @Override
+                public void run() {
+                    SunToolkit.createNewAppContext();
+                    SwingUtilities.invokeLater(new Runnable() {
+                        @Override
+                        public void run() {
+                            frame = new JFrame();
+                            component = new JLabel("Test Text");
+                            frame.add(component);
+                            frame.setBounds(100, 100, 100, 100);
+                            frame.setVisible(true);
+                            startSwingLatch.countDown();
+                        }
+                    });
+                }
+            }).start();
+            startSwingLatch.await();
+
+            final AtomicReference<Exception> caughtException = new AtomicReference<>();
+            Thread checkThread = new Thread(getRootThreadGroup(), new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        component.invalidate();
+                        component.revalidate();
+                        component.repaint(new Rectangle(0, 0, 0, 0));
+                    } catch (Exception e) {
+                        caughtException.set(e);
+                    }
+                }
+            });
+            checkThread.start();
+            checkThread.join();
+
+            if (caughtException.get() != null) {
+                throw new RuntimeException("Failed. Caught exception!", caughtException.get());
+            }
+        } finally {
+            new Thread(swingTG, new Runnable() {
+                @Override
+                public void run() {
+                    SwingUtilities.invokeLater(new Runnable() {
+                        @Override
+                        public void run() {
+                            if (frame != null) {
+                                frame.dispose();
+                            }
+                        }
+                    });
+                }
+            }).start();
+        }
+    }
+
+    private static ThreadGroup getRootThreadGroup() {
+        ThreadGroup currentTG = Thread.currentThread().getThreadGroup();
+        ThreadGroup parentTG = currentTG.getParent();
+        while (parentTG != null) {
+            currentTG = parentTG;
+            parentTG = currentTG.getParent();
+        }
+        return currentTG;
+    }
+}