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
* @see IPropertyChangeListener#propertyChange(PropertyChangeEvent)
	 */
	public void propertyChange(PropertyChangeEvent event) {
		if (fViewer == null)
			return;
		
		boolean refreshViewer= false;
	
		if (PreferenceConstants.SHOW_CU_CHILDREN.equals(event.getProperty())) {
			fActionSet.updateActionBars(getViewSite().getActionBars());
			
			boolean showCUChildren= PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.SHOW_CU_CHILDREN);
			((StandardJavaElementContentProvider)fViewer.getContentProvider()).setProvideMembers(showCUChildren);
			
			refreshViewer= true;
		} else if (MembersOrderPreferenceCache.isMemberOrderProperty(event.getProperty())) {
			refreshViewer= true;
		}
		if (refreshViewer)
			fViewer.refresh();
	}
	
	/* (non-Javadoc)
	 * @see IViewPartInputProvider#getViewPartInput()
	 */
	public Object getViewPartInput() {
		if (fViewer != null) {
			return fViewer.getInput();
		}
		return null;