Bug 339702 SWTException thrown after clicking a dropdown toolbar twice and then something else
I20110310-2200 1. Click the dropdown for the 'Run' tool item once. 2. Click it again while the menu is still up (or just double-click that's fine too). 3. Now click somewhere else so that the menu goes away. 4. An SWTException is thrown. org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:4277) at org.eclipse.swt.SWT.error(SWT.java:4192) at org.eclipse.swt.SWT.error(SWT.java:4163) at org.eclipse.swt.widgets.Widget.error(Widget.java:468) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:340) at org.eclipse.swt.widgets.Menu.isVisible(Menu.java:1134) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.dropdownEvent(HandledContributionItem.java:466) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.handleWidgetSelection(HandledContributionItem.java:425) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.access$1(HandledContributionItem.java:423) at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem$2.handleEvent(HandledContributionItem.java:388) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4150) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3739)
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/HandledContributionItem.java
((MRenderedMenu) mmenu).setContributionManager(obj);
			}
			if (obj instanceof IMenuCreator) {
				final IMenuCreator creator = (IMenuCreator) obj;
				final Menu menu = creator.getMenu(toolItem.getParent()
						.getShell());
				if (menu != null) {
					toolItem.addDisposeListener(new DisposeListener() {
						public void widgetDisposed(DisposeEvent e) {
							if (menu != null && !menu.isDisposed()) {
								creator.dispose();
								((MRenderedMenu) mmenu).setWidget(null);
							}
						}
					});
					
					menu.setData(AbstractPartRenderer.OWNING_ME, menu);
					return menu;
				}
			}
		}
		return null;
	}
	private void executeItem() {
		ParameterizedCommand cmd = model.getWbCommand();
		if (cmd == null) {
			return;
		}
		final IEclipseContext lclContext = getContext(model);
		EHandlerService service = (EHandlerService) lclContext