Bug 32053 [Import/Export] Need busy cursor when loading page
M5 build - start eclipse in Resource perspective - File / Import - double-click on External Plug-ins and Fragments - it takes a while to load, but there is no busy cursor
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/WizardDialog.java
boolean cancelable,
		IRunnableWithProgress runnable)
		throws InvocationTargetException, InterruptedException {
		
		
		Object state = null;
		if (activeRunningOperations == 0)
			state = aboutToStart(fork && cancelable);
		activeRunningOperations++;
		try {
			ModalContext.run(
				runnable,
				fork,
				getProgressMonitor(),
				getShell().getDisplay());
		} finally {
			activeRunningOperations--;
			
			if (state != null)
				stopped(state);
		}
	}
	/**
	 * Saves the enabled/disabled state of the given control in the
	 * given map, which must be modifiable.
	 *
	 * @param w the control, or <code>null</code> if none
	 * @param h the map (key type: <code>String</code>, element type:
	 *   <code>Boolean</code>)
	 * @param key the key