Send event close when call method onClose

tab.addEventListener(Events.ON_CLOSE,
				new EventListener<Event>() {

					@Override
						public void onEvent(Event event)
							throws Exception {
								String id = event.getTarget()
									.getAttribute("windowID")
									.toString();
								String mnid = event.getTarget()
										.getAttribute("mnWindow").toString();
										Component component = ((Tab) event
											.getTarget()).getTabbox()
											.getTabpanels().getChildren()
											.get(0).getFellow(id);
									Events.sendEvent(component, event);
									if (event.isPropagatable()) {
										removemnItem(mnid);
										visibleMenu();
								}
										
							}
						});

        // button closeAll click
        @Command
	public void onCloseAllTabs(@BindingParam("evt") Event event)
			throws IOException, InterruptedException {

		List<Component> list = tabsIndexCenter.getChildren();

		try {
			while (!list.isEmpty()) {

				// get the sum of all Tab
				int i = list.size();

				// close all tabs, beginning with the last
				// because Dashboard is all times the first
				if (list.get(i - 1) instanceof Tab) {
					if (StringUtils.equals(((Tab) list.get(i - 1)).getId(),
							"tab_menu_Item_Home")) {
						break;
					} else {
						((Tab) list.get(i - 1)).onClose();
                                         <b >       // I Want call event ON_CLOSE is register</b>
						// Events.
						// Events.sendEvent(Events.ON_CLOSE,
						// ((Tab) list.get(i - 1)).on, null);
					}

				}
			}
			// visibleMenu();
		} catch (Exception e) {
			Messagebox.show(e.getMessage(), "Error", Messagebox.OK,
					Messagebox.ERROR);
		}
	}