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
fIsFlatLayout= state;
	}
	/**
	 * Process resource deltas.
	 *
	 * @return true if the parent got refreshed
	 */
	private boolean processResourceDeltas(IResourceDelta[] deltas, Object parent) {
		if (deltas == null)
			return false;
		
		if (deltas.length > 1) {
			
			postRefresh(parent);
			return true;
		}
		for (int i= 0; i < deltas.length; i++) {
			if (processResourceDelta(deltas[i], parent))
				return true;
		}
		return false;
	}
	
	private void postRefresh(Object root) {
		
		
		if (isParent(root, fInput)) 
			root= fInput;
		postRefresh(root, true);
	}