Bug 28102 Folder not refreshed after adding a file
Build 20021210 Add "Eclipse JDT Builds" from CVS repository (ottcvs1) Open Package Explorer Switch to hierarchical layout Add a text file to "scripts" ==> it does not show up works with flat layout.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerContentProvider.java
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(final Object root) {
		postRunnable(new Runnable() {
			public void run() {
				
				Control ctrl= fViewer.getControl();
				if (ctrl != null && !ctrl.isDisposed()){
					fViewer.refresh(root);
				}
			}
		});
	}
	
	private void postAdd(final Object parent, final Object element) {
		postRunnable(new Runnable() {