Bug 34040 It takes a minute to expand a project in Package explorer
Build: RC1 For scalability testing, I'm developing against WSADIE. I imported a plug-in whose classpath contains >200 external jar entries. The project is initially collpsed. In the package explorer view, if you click on the + to expand the project, it will take about 60 seconds for the project to expand. After it expanded, I went into the view filters and changed it so that I could see the hidden '.*' files, it will take another minute to update the view.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerContentProvider.java
return NO_CHILDREN;
		}
	}
	private Object[] rootsAndContainers(IJavaProject project, Object[] roots) { 
		List result= new ArrayList(roots.length);
		Set containers= new HashSet(roots.length);
		for (int i= 0; i < roots.length; i++) {
			if (roots[i] instanceof IPackageFragmentRoot) {
				IPackageFragmentRoot root= (IPackageFragmentRoot)roots[i];
				IClasspathEntry entry= null;
				try {
					entry= root.getRawClasspathEntry();
				} catch (JavaModelException e) {
					continue;
				}
				if (entry != null && entry.getEntryKind() == IClasspathEntry.CPE_CONTAINER) 
					containers.add(entry);
				else
					result.add(root);
			} else {
				result.add(roots[i]);
			}
		}
		for (Iterator each= containers.iterator(); each.hasNext();) {
			IClasspathEntry element= (IClasspathEntry) each.next();
			result.add(new ClassPathContainer(project, element));
		}		
		return result.toArray();
	}
	private Object[] getContainerPackageFragmentRoots(ClassPathContainer container) throws JavaModelException {