Bug 64372 Projects showing up in Package Explorer twice [package explorer]
20040527-0800 When I load the platform-ui module and org.eclipse.tests from HEAD org.eclipse.tests is showing up twice in the PackageExplorer. This is not a a problem in the Resource Navigator. Open type only shows it once so it doesn't look like there are two instance in the workspace
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
}
	public void collapseAll() {
		try {
			fViewer.getControl().setRedraw(false);		
			fViewer.collapseToLevel(getViewPartInput(), AbstractTreeViewer.ALL_LEVELS);
		} finally {
			fViewer.getControl().setRedraw(true);
		}
	}
	
	public PackageExplorerPart() { 
		initLinkingEnabled();
		fSelectionListener= new ISelectionChangedListener() {
			public void selectionChanged(SelectionChangedEvent event) {
				handleSelectionChanged(event);
			}
		};
	}
	public boolean show(ShowInContext context) {
		Object input= context.getInput();
		if (input instanceof IEditorInput) {
			Object elementOfInput= getElementOfInput((IEditorInput)context.getInput());
			if (elementOfInput == null) 
				return false; 
			return tryToReveal(elementOfInput);
		}
		ISelection selection= context.getSelection();
		if (selection != null) {
			 
			if (selection instanceof IStructuredSelection) {