public synchronized void addHierarchyBoundsListener(HierarchyBoundsListener l) { hierarchyBoundsListener = AWTEventMulticaster.add(hierarchyBoundsListener, l);
addHierarchyBoundsListener(HierarchyBoundsListener l) { hierarchyBoundsListener = AWTEventMulticaster.add(hierarchyBoundsListener, l);
	public synchronized void addHierarchyBoundsListener(HierarchyBoundsListener l) {		hierarchyBoundsListener = AWTEventMulticaster.add(hierarchyBoundsListener, l);		if (hierarchyBoundsListener != null)			enableEvents(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK);	}