public void dispose() {
		Set<Entry<String, List<ToolBarItemManager>>> entrySet = groupToItemsMap.entrySet();
		for (Entry<String, List<ToolBarItemManager>> entry : entrySet) {
			List<ToolBarItemManager> items = entry.getValue();
			for (ToolBarItemManager item : items) {
				item.dispose();
			}
		}
		groupToItemsMap.clear();
	}
Releases all resources.  Makes this object unusable.
Ghidra/Framework/Docking/src/main/java/docking/menu/ToolBarManager.java