Bug 275910 [Widgets] PaintListener on Tree not invoked when item count is 0
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/ExtendedMarkersView.java
}
			/*
			 * (non-Javadoc)
			 * 
			 * @see
			 * org.eclipse.ui.OpenAndLinkWithEditorHelper#open(org.eclipse.jface
			 * .viewers.ISelection, boolean)
			 */
			protected void open(ISelection selection, boolean activate) {
				openSelectedMarkers();
			}
		};
	}
	/**
	 * Turn off all filters in the builder.
	 */
	void disableAllFilters() {
		generator.disableAllFilters();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.part.WorkbenchPart#dispose()
	 */
	public void dispose() {
		builder.cancelUpdate();
		cancelQueuedUpdates();
		
		builder.dispose();
		generator.dispose();