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
fShowDefiningType= showDefiningType;
		}
		public boolean isShowDefiningType() {
			return fShowDefiningType;
		}
		
		private IType getDefiningType(Object element) throws JavaModelException {
			int kind= ((IJavaElement) element).getElementType();
		
			if (kind != IJavaElement.METHOD && kind != IJavaElement.FIELD && kind != IJavaElement.INITIALIZER) {
				return null;
			}
			IType declaringType= ((IMember) element).getDeclaringType();
			if (kind != IJavaElement.METHOD) {
				return declaringType;
			}
			ITypeHierarchy hierarchy= getSuperTypeHierarchy(declaringType);
			if (hierarchy == null) {
				return declaringType;
			}
			IMethod method= (IMethod) element;
			MethodOverrideTester tester= new MethodOverrideTester(declaringType, hierarchy);
			IMethod res= tester.findDeclaringMethod(method, true);
			if (res == null || method.equals(res)) {
				return declaringType;
			}
			return res.getDeclaringType();
		}
	}
	private class OutlineTreeViewer extends TreeViewer {