Bug 47150 [Progress] ProgressMonitorJobsDialog used on shutdown
build I20031119-2030 On shutdown, a ProgressMonitorJobsDialog is used when saving the workspace. This is opened with fork=false and cancelable=false. fork=false means the UI is not processing events, so the Jobs button is unresponsive.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
if (workbenchAdvisor != null) {
			throw new IllegalStateException();
		}
		workbenchAdvisor = this;
	}
	/**
	 * Returns the single instance for this advisor. Can
	 * be <code>null</code> if not created yet.
	 */
	 static final IDEWorkbenchAdvisor getAdvisor() {
		return workbenchAdvisor;
	}
	
	/**
	 * Returns the workbench configurer for the advisor. Can
	 * be <code>null</code> if advisor not initialized yet.
	 */
	 IWorkbenchConfigurer getWorkbenchConfigurer() {
		return configurer;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.ui.application.WorkbenchAdvisor#initialize
	 */
	public void initialize(IWorkbenchConfigurer configurer) {
		
		this.configurer = configurer;	
		
		
		configurer.setSaveAndRestore(true);