Bug 55451 Assertion Failed in ASTProvider
plugin export 20040319 1. Browse into CVS of org.eclipse.swt (win32), and open TableItem.java 2. Endless repretitions of error dialogs org.eclipse.jface.text.Assert$AssertionFailedException: Assertion failed: at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at org.eclipse.jface.text.Assert$AssertionFailedException.<init>(Assert.java:54) at org.eclipse.jface.text.Assert.isTrue(Assert.java:175) at org.eclipse.jface.text.Assert.isTrue(Assert.java) at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.getAST(ASTProvider.java:140) at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$PartListenerGroup.calculateASTandInform(SelectionListenerWithASTManager.java) at org.eclipse.jdt.internal.ui.viewsupport.SelectionListenerWithASTManager$1.run(SelectionListenerWithASTManager.java:97) at org.eclipse.core.internal.jobs.Worker.run(Worker.java)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/SelectionListenerWithASTManager.java
public WorkbenchWindowListener(ISelectionService service) {
			fSelectionService= service;
			fPartListeners= new HashMap();
			fSelectionListener= new ISelectionListener() {
				public void selectionChanged(IWorkbenchPart part, ISelection selection) {
					doSelectionChanged(part, selection);
				}
			};
			
			fPostSelectionListener= new ISelectionListener() {
				public void selectionChanged(IWorkbenchPart part, ISelection selection) {
					doPostSelectionChanged(part, selection);
				}
			};
			
		}
		
		public boolean isEmpty() {
			return fPartListeners.isEmpty();
		}
		
		
		public void install(IEditorPart part, ISelectionListenerWithAST listener) {
			if (fPartListeners.isEmpty()) {
				fSelectionService.addPostSelectionListener(fPostSelectionListener);
				fSelectionService.addSelectionListener(fSelectionListener);
			}
			
			PartListenerGroup listenerGroup= (PartListenerGroup) fPartListeners.get(part);