8032960: Running forms URL throws NullPointerException in Javaconsole.

Reviewed-by: anthony, serb

src/share/classes/java/awt/Toolkit.java

@@ -2557,30 +2557,23 @@ public abstract class Toolkit {
         public void firePropertyChange(final PropertyChangeEvent evt) {
             Object oldValue = evt.getOldValue();
             Object newValue = evt.getNewValue();
-            String propertyName = evt.getPropertyName();
             if (oldValue != null && newValue != null && oldValue.equals(newValue)) {
                 return;
             }
-            Runnable updater = new Runnable() {
-                public void run() {
-                    PropertyChangeSupport pcs = (PropertyChangeSupport)
-                            AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY);
-                    if (null != pcs) {
-                        pcs.firePropertyChange(evt);
-                    }
-                }
-            };
-            final AppContext currentAppContext = AppContext.getAppContext();
             for (AppContext appContext : AppContext.getAppContexts()) {
                 if (null == appContext || appContext.isDisposed()) {
                     continue;
                 }
-                if (currentAppContext == appContext) {
-                    updater.run();
-                } else {
-                    final PeerEvent e = new PeerEvent(source, updater, PeerEvent.ULTIMATE_PRIORITY_EVENT);
-                    SunToolkit.postEvent(appContext, e);
-                }
+                final PeerEvent e = new PeerEvent(source,
+                        () -> {
+                            PropertyChangeSupport pcs = (PropertyChangeSupport)
+                                    AppContext.getAppContext().get(PROP_CHANGE_SUPPORT_KEY);
+                            if (null != pcs) {
+                                pcs.firePropertyChange(evt);
+                            }
+                        },
+                        PeerEvent.ULTIMATE_PRIORITY_EVENT);
+                SunToolkit.postEvent(appContext, e);
             }
         }
     }

src/windows/classes/sun/awt/windows/WToolkit.java

@@ -866,11 +866,7 @@ public class WToolkit extends SunToolkit implements Runnable {
      * Windows doesn't always send WM_SETTINGCHANGE when it should.
      */
     private void windowsSettingChange() {
-        EventQueue.invokeLater(new Runnable() {
-            public void run() {
-                updateProperties();
-            }
-        });
+        updateProperties();
     }
 
     private synchronized void updateProperties() {

test/java/awt/Toolkit/ToolkitPropertyTest/NoAppContextTest.java

+/*
+ * 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 8032960
+ * @summary checks that desktop properties work if Toolkit thread has no AppContext
+ * @author Petr Pchelko
+ */
+
+import sun.awt.OSInfo;
+import sun.awt.SunToolkit;
+
+import javax.swing.*;
+import java.awt.*;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicReference;
+
+public class NoAppContextTest {
+
+    private static final ThreadGroup stubGroup = new ThreadGroup("stub");
+    private static final ThreadGroup awtGroup = new ThreadGroup("AWT");
+    private static final AtomicBoolean propertyChangeFired = new AtomicBoolean(false);
+    private static Frame frame;
+
+    private static final Object LOCK = new Object();
+
+    public static void main(String[] args) throws Exception {
+
+        if (OSInfo.getOSType() != OSInfo.OSType.WINDOWS) {
+            // The test is for Windows platform only
+            return;
+        }
+
+        createStubContext();
+
+        Thread awtThread = new Thread(awtGroup, () -> {
+            SunToolkit.createNewAppContext();
+            SwingUtilities.invokeLater(() -> {
+                synchronized (LOCK) {
+                    frame = new Frame();
+                    frame.setBounds(100, 100, 100, 100);
+                    frame.setVisible(true);
+                    Toolkit.getDefaultToolkit().addPropertyChangeListener("win.propNames", ev -> {
+                        propertyChangeFired.set(true);
+                    });
+                }
+            });
+        });
+        awtThread.start();
+        awtThread.join();
+        sync();
+
+        final GraphicsDevice device = GraphicsEnvironment.getLocalGraphicsEnvironment()
+                .getDefaultScreenDevice();
+
+        AtomicReference<DisplayMode> originalRef = new AtomicReference<>();
+        try {
+            AtomicBoolean isSupported = new AtomicBoolean(true);
+            invokeInAWT(() -> {
+                if (device.isFullScreenSupported()) {
+                    device.setFullScreenWindow(frame);
+                } else {
+                    isSupported.set(false);
+                }
+            });
+            if (!isSupported.get()) {
+                return;
+            }
+            invokeInAWT(() -> {
+                if (device.isDisplayChangeSupported()) {
+                    DisplayMode original = device.getDisplayMode();
+                    originalRef.set(original);
+                    try {
+                        DisplayMode[] modes = device.getDisplayModes();
+                        for (DisplayMode mode : modes) {
+                            if (!mode.equals(original)) {
+                                device.setDisplayMode(mode);
+                                break;
+                            }
+                        }
+                    } finally {
+                        device.setDisplayMode(original);
+                    }
+                } else {
+                    isSupported.set(false);
+                }
+            });
+            if (!isSupported.get()) {
+                return;
+            }
+        } finally {
+            invokeInAWT(() -> {
+                device.setDisplayMode(originalRef.get());
+                frame.dispose();
+            });
+        }
+
+        if (!propertyChangeFired.get()) {
+            throw new RuntimeException("Failed: PropertyChange did not fire");
+        }
+    }
+
+    private static void invokeInAWT(Runnable r) throws InterruptedException {
+        Thread awtThread = new Thread(awtGroup, () -> {
+            SwingUtilities.invokeLater(() -> {
+                synchronized (LOCK) {
+                    r.run();
+                }
+            });
+        });
+        awtThread.start();
+        awtThread.join();
+        sync();
+    }
+
+    private static void createStubContext() throws InterruptedException {
+        Thread stub = new Thread(stubGroup, SunToolkit::createNewAppContext);
+        stub.start();
+        stub.join();
+    }
+
+    /**
+     * Runs realSync on a thread with an AppContext and waits for it to finish
+     */
+    private static void sync() throws InterruptedException {
+        final AtomicReference<InterruptedException> exc = new AtomicReference<>(null);
+
+        Thread syncThread = new Thread(awtGroup, () -> {
+            try {
+                ((SunToolkit) Toolkit.getDefaultToolkit()).realSync();
+                Thread.sleep(2000);
+            } catch (InterruptedException e) {
+                exc.set(e);
+            }
+        });
+        syncThread.start();
+        syncThread.join();
+        if (exc.get() != null) {
+            throw exc.get();
+        }
+    }
+}
+