Bug 37884 Show Type hierarchy scalability problem
corner case but... 1) Open Object 2) select toString in the editor 3) ctrl-t 4) type T to filter the list ->this takes minutes The filtering is done after every keystroke. A first improvement is to do the refiltering after a time out. Another solution is to use the separate thread solution as is done in the ElementListSelectionDialog
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/AbstractInformationControl.java
fTreeViewer.setSelection(new StructuredSelection(element), true);
		else
			fTreeViewer.setSelection(StructuredSelection.EMPTY);
	}
	private IJavaElement findElement(TreeItem[] items) {
		ILabelProvider labelProvider= (ILabelProvider)fTreeViewer.getLabelProvider();
		for (int i= 0; i < items.length; i++) {
			IJavaElement element= (IJavaElement)items[i].getData();
			if (fStringMatcher == null)
				return element;
			
			if (element != null) {
				String label= labelProvider.getText(element);
				if (fStringMatcher.match(label))
					return element;
			}
			element= findElement(items[i].getItems());
			if (element != null)
				return element;
		}
		return null;
	}
	/*
	 * @see IInformationControl#setInformation(String)
	 */
	public void setInformation(String information) {
		
	}
	
	/*