Bug 182714 [Contributions] Improve toolbar configurability
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ToolBarManager.java
if (!toolBarExist() && parent != null) {
			toolBar = new ToolBar(parent, itemStyle);
			toolBar.setMenu(getContextMenuControl());
			update(true);
			
			toolBar.getAccessible().addAccessibleListener(getAccessibleListener());
		}
		return toolBar;
	}
	/**
	 * Get the accessible listener for the tool bar.
	 * 
	 * @return AccessibleListener
	 * 
	 * @since 3.1
	 */
	private AccessibleListener getAccessibleListener() {
		return new AccessibleAdapter() {
			public void getName(AccessibleEvent e) {
				if (e.childID != ACC.CHILDID_SELF) {
					ToolItem item = toolBar.getItem(e.childID);
					if (item != null) {
						String toolTip = item.getToolTipText();
						if (toolTip != null) {
							e.result = toolTip;
						}
					}
				}
			}
		};