Bug 15486 Hierarchy View takes 8 minutes to start up
In my workspace I have 24 projects. In each case, the java build path contains about 20 or more jar files from a target platform which I am extending with new plugins. I have one java perspective, which contains the following views: packages, navigator, outline. In the shortcut bar, I have the tasks, search, and repository view. There are no editors open. It takes about 20 seconds to start up. If I open the JavaEditor class using Open Type.., a java edior opens on the class and the hierarchy view opens. If I close the editor, shutdown, and restart, it takes me 8 minutes to restart. If I close the hierarchy view, shutdown, and restart, it takes about 20 seconds to start up. I am now afraid to shutdown eclipse with the hierarchy view open. Please help me.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
int nHierarchyViewers= fAllViewers.length; 
		Viewer[] trackedViewers= new Viewer[nHierarchyViewers + 1];
		for (int i= 0; i < nHierarchyViewers; i++) {
			trackedViewers[i]= fAllViewers[i];
		}
		trackedViewers[nHierarchyViewers]= fMethodsViewer;
		fSelectionProviderMediator= new SelectionProviderMediator(trackedViewers);
		IStatusLineManager slManager= getViewSite().getActionBars().getStatusLineManager();
		fSelectionProviderMediator.addSelectionChangedListener(new StatusBarUpdater(slManager));
		
		getSite().setSelectionProvider(fSelectionProviderMediator);
		getSite().getPage().addPartListener(fPartListener);
		
		IJavaElement input= determineInputElement();
		if (fMemento != null) {
			restoreState(fMemento, input);
		} else if (input != null) {
			setInputElement(input);
		} else {
			setViewerVisibility(false);
		}
		WorkbenchHelp.setHelp(fPagebook, IJavaHelpContextIds.TYPE_HIERARCHY_VIEW);
		
		fActionGroups= new CompositeActionGroup(new ActionGroup[] {
				new OpenEditorActionGroup(this), 
				new OpenViewActionGroup(this), 
				new ShowActionGroup(this), 
				fCCPActionGroup= new CCPActionGroup(this),