Bug 32935 Java Browsing Members view does not update on visibility change
Build 2.1 RC1 1. Open Java Browsing perspective 2. Open an existing CU 3. Add public method t() {} 4. Change public to protected (or remove public) ==> t in Members view does not update
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/JavaBrowsingContentProvider.java
if (project == null || !project.exists())
			return false;
		return project.isOnClasspath(element);
	}
	
	/**
	 * Updates the package icon
	 */
	 private void postUpdateIcon(final IJavaElement element) {
	 	postRunnable(new Runnable() {
			public void run() {
				Control ctrl= fViewer.getControl();
				if (ctrl != null && !ctrl.isDisposed()) 
					fViewer.update(element, new String[]{IBasicPropertyConstants.P_IMAGE});
			}
		});
	 }
		
	private void postRefresh(final Object root) {
		postRunnable(new Runnable() {
			public void run() {
				Control ctrl= fViewer.getControl();
				if (ctrl != null && !ctrl.isDisposed()) {
					fViewer.refresh(root, false);
				}
			}
		});
	}
	private void postAdd(final Object parent, final Object element) {
		postAdd(parent, new Object[] {element});