Bug 137640 [CommonNavigator] New java elements not selected in project explorer
3.2 RC1 - show the Project Explorer view - create a Java project - select the project and create a package (e.g. using the toolbar button) - the package is created, but not selected (it does get selected in the Package Explorer) - select the package - create a new class - the class is created, but not selected (works in the PE) In both cases, the selection gets cleared. This results in subsequent package or class creations not knowing which source folder they should apply to. E.g. try creating two packages in a row.
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/extensions/NavigatorContentDescriptorManager.java
evaluationsWithOverrides.clear();
		}
	}
	
	private final Map cachedTriggerPointEvaluations = new WeakHashMap();
	
	private final Map cachedPossibleChildrenEvaluations = new WeakHashMap();
	private ImageRegistry imageRegistry;
	private final Set overridingDescriptors = new HashSet();
	private final Set saveablesProviderDescriptors = new HashSet();
	
	private final Set firstClassDescriptorsSet = new HashSet();
	/**
	 * @return the singleton instance of the manager
	 */
	public static NavigatorContentDescriptorManager getInstance() {
		return INSTANCE;
	}
	private NavigatorContentDescriptorManager() {
		new NavigatorContentDescriptorRegistry().readRegistry();
	}
	/**
	 * 
	 * @return Returns all content descriptor(s).
	 */
	public NavigatorContentDescriptor[] getAllContentDescriptors() {
		NavigatorContentDescriptor[] finalDescriptors = new NavigatorContentDescriptor[firstClassDescriptors
				.size()];
		allDescriptors.values().toArray(finalDescriptors);
		Arrays.sort(finalDescriptors, ExtensionPriorityComparator.INSTANCE);