Bug 128825 [navigation] Long pause and exceptions pressing Ctrl+O
Build: 3.2 M5 While waiting for a long CVS checkout, I was browsing through some Java code. I hit Ctrl+O to open the outline, typed some characters ("get"), and then hit Ctrl+O again to show inherited members. There was a pause, and then the outline view went blank. After that, toggling Ctrl+O or changing the filter text in the outline had no effect - the view was just blank. After closing the outline popup completely and reopening, it was behaving as expected. While doing this, a large number of OperationCanceledExceptions appeared in my log file (log attached).
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/JavaOutlineInformationControl.java
private KeyAdapter fKeyAdapter;
	private OutlineContentProvider fOutlineContentProvider;
	private IJavaElement fInput= null;
	private OutlineSorter fOutlineSorter;
	private OutlineLabelProvider fInnerLabelProvider;
	protected Color fForegroundColor;
	private boolean fShowOnlyMainType;
	private LexicalSortingAction fLexicalSortingAction;
	private SortByDefiningTypeAction fSortByDefiningTypeAction;
	private ShowOnlyMainTypeAction fShowOnlyMainTypeAction;
	private Map fTypeHierarchies= new HashMap();
	private class OutlineLabelProvider extends AppearanceAwareLabelProvider {
		private boolean fShowDefiningType;
		private OutlineLabelProvider() {
			super(AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS |  JavaElementLabels.F_APP_TYPE_SIGNATURE | JavaElementLabels.ALL_CATEGORY, AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS);
		}
		/*
		 * @see ILabelProvider#getText
		 */
		public String getText(Object element) {
			String text= super.getText(element);
			if (fShowDefiningType) {
				try {
					IType type= getDefiningType(element);
					if (type != null) {