Bug 97214 [misc] Opening a generated *.class file throws IllegalStateException
3.1 RC1 Opening a generated *.class file throws IllegalStateException !ENTRY org.eclipse.jdt.ui 4 2 2005-05-30 12:38:04.976 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jdt.ui". !STACK 0 java.lang.IllegalStateException at org.eclipse.jdt.core.dom.ASTParser.internalCreateAST(ASTParser.java:752) at org.eclipse.jdt.core.dom.ASTParser.createAST(ASTParser.java:576) at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider$1.run(ASTProvider.java:577) at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1038) at org.eclipse.core.runtime.Platform.run(Platform.java:775) at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.createAST(ASTProvider.java:574) at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.getAST(ASTProvider.java:495) at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor$7.run(JavaEditor.java:3092) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:67)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/ASTProvider.java
*/
		public void partClosed(IWorkbenchPartReference ref) {
			if (isActiveEditor(ref)) {
				if (DEBUG)
					System.out.println(getThreadName() + " - " + DEBUG_PREFIX + "closed active editor: " + ref.getTitle()); 
				activeJavaEditorChanged(null);
			}
		}
		/*
		 * @see org.eclipse.ui.IPartListener2#partDeactivated(org.eclipse.ui.IWorkbenchPartReference)
		 */
		public void partDeactivated(IWorkbenchPartReference ref) {
		}
		/*
		 * @see org.eclipse.ui.IPartListener2#partOpened(org.eclipse.ui.IWorkbenchPartReference)
		 */
		public void partOpened(IWorkbenchPartReference ref) {
			if (isJavaEditor(ref) && !isActiveEditor(ref))
				activeJavaEditorChanged(ref.getPart(true));
		}
		/*
		 * @see org.eclipse.ui.IPartListener2#partHidden(org.eclipse.ui.IWorkbenchPartReference)
		 */
		public void partHidden(IWorkbenchPartReference ref) {
		}
		/*
		 * @see org.eclipse.ui.IPartListener2#partVisible(org.eclipse.ui.IWorkbenchPartReference)
		 */
		public void partVisible(IWorkbenchPartReference ref) {
			if (isJavaEditor(ref) && !isActiveEditor(ref))