Bug 85452 [IDE] (regression) Backdrop missing when all perspectives closed
I20050215-2300 - close all perspectives - the main page is blank - it should have a backdrop with text and button explaining how to open a perspective
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
public void eventLoopException(Throwable exception) {
        super.eventLoopException(exception);
        if (exceptionHandler != null) {
            exceptionHandler.handleException(exception);
        } else {
            if (getWorkbenchConfigurer() != null) {
                getWorkbenchConfigurer().emergencyClose();
            }
        }
    }
    /* (non-Javadoc)
     * @see org.eclipse.ui.application.WorkbenchAdvisor#createWorkbenchWindowAdvisor(org.eclipse.ui.application.IWorkbenchWindowConfigurer)
     */
    public WorkbenchWindowAdvisor createWorkbenchWindowAdvisor(IWorkbenchWindowConfigurer configurer) {
        return  new IDEWorkbenchWindowAdvisor(this, configurer);
    }
    
    /**
     * Return true if the intro plugin is present and false otherwise.
     */
    public boolean hasIntro() {
        return getWorkbenchConfigurer().getWorkbench().getIntroManager()
                .hasIntro();
    }
    private void refreshFromLocal() {
        String[] commandLineArgs = Platform.getCommandLineArgs();
        IPreferenceStore store = IDEWorkbenchPlugin.getDefault()
                .getPreferenceStore();
        boolean refresh = store
                .getBoolean(IDEInternalPreferences.REFRESH_WORKSPACE_ON_STARTUP);