Control ctrl= fViewer.getControl(); if (ctrl != null && !ctrl.isDisposed()) { fViewer.remove(element); }
fViewer.remove(element);
	protected void postRemove(final Object element) {		postRunnable(new Runnable() {			public void run() {				Control ctrl= fViewer.getControl();				if (ctrl != null && !ctrl.isDisposed()) {					fViewer.remove(element);				}			}		});	}