Bug 36280 Duplicate projects in projects view [browsing]
In the Java Browsing view, I have a situation where I have ended up with a duplicate list of projects (as shown in attached screenshot). For some reason, the list of projects seems to have been built twice. I can see each one of them by drilling down through it. I have disabled the '-noupdate' from the launch (trying to get Omondo UML installed) and have restarted several times. It may be due to a glitch in the rebuilding process.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/JavaBrowsingContentProvider.java
if (element.equals(fInput)) {
					postRefresh(element);
				} else {
					postRefresh(parent);
				}
			}
			
			if (element instanceof IPackageFragmentRoot && fBrowsingPart.isValidElement(element)) {
				postRefresh(skipProjectPackageFragmentRoot((IPackageFragmentRoot)element));
				return;
			}
		}
		for (int i= 0; i < affectedChildren.length; i++) {
			processDelta(affectedChildren[i]);
		}
	}
	private boolean isOnClassPath(ICompilationUnit element) throws JavaModelException {
		IJavaProject project= element.getJavaProject();
		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();