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
Activator
						.trace(Policy.DEBUG_MENUS, "command: " + parmCmd, null); 
				model.setWbCommand(parmCmd);
				return;
			}
			HashMap<String, String> parms = new HashMap<String, String>();
			for (MParameter parm : modelParms) {
				parms.put(parm.getName(), parm.getValue());
			}
			final ParameterizedCommand parmCmd = commandService.createCommand(
					cmdId, parms);
			Activator.trace(Policy.DEBUG_MENUS, "command: " + parmCmd, null); 
			model.setWbCommand(parmCmd);
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.action.ContributionItem#fill(org.eclipse.swt.widgets
	 * .Menu, int)
	 */
	@Override
	public void fill(Menu menu, int index) {
		if (model == null) {
			return;
		}
		if (widget != null) {
			return;
		}