Bug 446040 - Invalid thread access inI20141118-0830I20141118-0800

RuntimeClasspathViewer$1.preferenceChange (err_grp: 87791828)

Change-Id: I18e73c4e2e8d1a9e6fdb661fb589d6c60bf635a1
Signed-off-by: Sarika Sinha <sarika.sinha@in.ibm.com>

1 files changed, 13 insertions, 3 deletions

diff --git a/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/classpath/RuntimeClasspathViewer.java b/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/classpath/RuntimeClasspathViewer.java
index 2490d906d..a4229509d 100644
--- a/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/classpath/RuntimeClasspathViewer.java
+++ b/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/classpath/RuntimeClasspathViewer.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2012 IBM Corporation and others.
+ * Copyright (c) 2000, 2014 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -17,10 +17,11 @@ import java.util.List;
 
 import org.eclipse.core.runtime.ListenerList;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
-import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences.IPreferenceChangeListener;
 import org.eclipse.core.runtime.preferences.IEclipsePreferences.PreferenceChangeEvent;
+import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.debug.core.ILaunchConfiguration;
+import org.eclipse.debug.internal.ui.DebugUIPlugin;
 import org.eclipse.jdt.internal.debug.ui.actions.RuntimeClasspathAction;
 import org.eclipse.jdt.internal.debug.ui.launcher.IClasspathViewer;
 import org.eclipse.jdt.internal.debug.ui.launcher.IEntriesChangedListener;
@@ -55,7 +56,16 @@ public class RuntimeClasspathViewer extends TreeViewer implements IClasspathView
 	private IPreferenceChangeListener fPrefListeners = new IPreferenceChangeListener() {
 		
 		public void preferenceChange(PreferenceChangeEvent event) {
-			refresh(true);
+			if (DebugUIPlugin.getStandardDisplay().getThread().equals(Thread.currentThread())) {
+				refresh(true);
+			} else {
+				DebugUIPlugin.getStandardDisplay().syncExec(new Runnable() {
+					public void run() {
+						refresh(true);
+					}
+				});
+			}
+
 		}
 	};