BundleContext ctx = FrameworkUtil.getBundle(ViewLogging.class).getBundleContext();
ServiceReference<EventAdmin> ref = ctx.getServiceReference(EventAdmin.class);
EventAdmin eventAdmin = ctx.getService(ref);
Map<String,Object> properties = new HashMap<String, Object>();
properties.put("ENTRY", msg);
Event event = new Event(ViewTasks.EVENT_TOPIC_JUMP_TO_FNC_IN_TASK_TREE, properties);
eventAdmin.postEvent(event);

BundleContext ctx = FrameworkUtil.getBundle(ViewTasks.class).getBundleContext();
EventHandler handler = new EventHandler() {
	public void handleEvent(final Event event) {
		parent.getDisplay().syncExec(new Runnable() {
			public void run() {
				Message msg = (Message)event.getProperty("ENTRY");
				selectTaskFromTree(msg);
			}
		});
	}
};

Dictionary<String,String> properties = new Hashtable<String, String>();
properties.put(EventConstants.EVENT_TOPIC, EVENT_TOPIC_JUMP_TO_FNC_IN_TASK_TREE);
ctx.registerService(EventHandler.class, handler, properties);

PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().showView(ViewTasks.ID);

org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.swt.SWT.error(SWT.java:4397)
	at org.eclipse.swt.SWT.error(SWT.java:4312)
	at org.eclipse.swt.SWT.error(SWT.java:4283)
	at org.eclipse.swt.widgets.Widget.error(Widget.java:472)
	at org.eclipse.swt.widgets.Widget.getDisplay(Widget.java:586)
	at castle.testenv.ViewTasks$4.handleEvent(ViewTasks.java:281)

EventHandler handler = new EventHandler() {
	public void handleEvent(final Event event) {
		if (!parent.isDisposed()) {
			parent.getDisplay().syncExec(new Runnable() {
				public void run() {
					Message msg = (Message)event.getProperty("ENTRY");
					selectTaskFromTree(msg);
				}
			});
		}
	}
};

@Inject @Optional
void closeHandler(@UIEventTopic(''TOPIC_STRING'') foo.Bar payload) {
    // Useful work that has access to payload.  The instance of foo.Bar that the event poster placed on the global event bus with the topic ''TOPIC_STRING''
}