Bug 38491 source generation actions: should be available on most cus
20020604 it should be available on compilation units that have 1 type or more than 1 type if 1 of the types is the primary type some 99% of all cus known to man belong to that category
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/AddUnimplementedConstructorsAction.java
private IMethod[] fMethodsList;
		private static final Object[] EMPTY= new Object[0];
		
		public AddUnimplementedConstructorsContentProvider(IMethod[] methodList) {
			fMethodsList= methodList;
		}
		
		/*
		 * @see ITreeContentProvider#getChildren(Object)
		 */
		public Object[] getChildren(Object parentElement) {
			return EMPTY;
		}
		/*
		 * @see ITreeContentProvider#getParent(Object)
		 */
		public Object getParent(Object element) {
			return null;