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
String perspectiveId = null;
		if (index >=0 && welcomePerspectiveInfos != null && index < welcomePerspectiveInfos.size()) {
			perspectiveId = ((AboutInfo) welcomePerspectiveInfos.get(index)).getWelcomePerspectiveId();
		}
		if (perspectiveId == null) {
			perspectiveId = IDE.RESOURCE_PERSPECTIVE_ID;
		}
		return perspectiveId;
	}
	/*
	 * Open the welcome editor for the primary feature and
	 * for any newly installed features.
	 */
	private void openWelcomeEditors() throws WorkbenchException {
		IWorkbenchWindow window = configurer.getWorkbench().getActiveWorkbenchWindow();
		if (window == null) {
			if (configurer.getWorkbench().getWorkbenchWindowCount() > 0) {
				window = configurer.getWorkbench().getWorkbenchWindows()[0];
			} else {
				return;
			}
		}
		if (IDEWorkbenchPlugin.getDefault().getPreferenceStore().getBoolean(IDEInternalPreferences.WELCOME_DIALOG)) {
			
			AboutInfo primaryInfo = IDEWorkbenchPlugin.getDefault().getPrimaryInfo();
			if (primaryInfo == null) {
				return;
			}
			URL url = primaryInfo.getWelcomePageURL();
			if (url == null) {