if (cu == null || !JavaModelUtil.isPrimary(cu))
if (cu != null && !JavaModelUtil.isPrimary(cu))
	private void updateSelectionProvider(IPageSite site) {		ISelectionProvider provider= fOutlineViewer;		if (fInput != null) {			ICompilationUnit cu= (ICompilationUnit)fInput.getAncestor(IJavaElement.COMPILATION_UNIT);			if (cu == null || !JavaModelUtil.isPrimary(cu))				provider= new EmptySelectionProvider();		}		site.setSelectionProvider(provider);	}