Bug 59956 [R21PRES] perspective switcher
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
}
		
		declareWorkbenchImages();
		
		
		activityHelper = IDEWorkbenchActivityHelper.getInstance();
	}
	/* (non-Javadoc)
	 * @see org.eclipse.ui.application.WorkbenchAdvisor#preStartup()
	 */
	public void preStartup() {	  
		
		
		Platform.getJobManager().suspend();
		
		initializeFeatureSets();
		Set s = getNewlyAddedFeatures();
		welcomePerspectiveInfos = new ArrayList(s.size());
		for (Iterator it = s.iterator(); it.hasNext(); ) {
			String versionedId = (String) it.next();
			String featureId = versionedId.substring(0, versionedId.indexOf(':'));
			String featureVersionId = versionedId.substring(versionedId.indexOf(':')+1);
			AboutInfo info = AboutInfo.readFeatureInfo(featureId, featureVersionId, featureId);
			if (info != null && info.getWelcomePerspectiveId() != null && info.getWelcomePageURL() != null) {
				welcomePerspectiveInfos.add(info);
			}
		}
		
		
		IProgressService service = PlatformUI.getWorkbench()