@Nonnull @ReturnsMutableCopy public static ICommonsMap <String, Boolean> getAllDisplayMenuItemIDs (@Nonnull final IMenuItemDeterminatorCallback aDeterminator) { ValueEnforcer.notNull (aDeterminator, "Determinator"); TreeVisitor.visitTree (aDeterminator.getMenuTree (), aDeterminator); return aDeterminator.getAllItemIDs (); }