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
fShowInheritedMembers= showInheritedMembers;
		}
		public boolean isShowingInheritedMembers() {
			return fShowInheritedMembers;
		}
		public void toggleShowInheritedMembers() {
			Tree tree= getTreeViewer().getTree();
			tree.setRedraw(false);
			fShowInheritedMembers= !fShowInheritedMembers;
			getTreeViewer().refresh();
			getTreeViewer().expandToLevel(2);
			
			Object selectedElement= getSelectedElement();
			if (selectedElement != null)
				getTreeViewer().reveal(selectedElement);
			tree.setRedraw(true);
		}
		/**
		 * {@inheritDoc}
		 */
		public Object[] getChildren(Object element) {
			if (fShowOnlyMainType) {
				if (element instanceof ICompilationUnit) {
					element= getMainType((ICompilationUnit)element);
				} else if (element instanceof IClassFile) {
					element= getMainType((IClassFile)element);
				}
				if (element == null)
					return NO_CHILDREN;
			}