@OwnerUser public static boolean isProfileManagedByIsland(final UserHandle user) {
		if (isOwner(user)) {
			if (isOwner()) return sCurrentProfileManagedByIsland;
			throw new IllegalArgumentException("Not working for profile parent user");
		}
		return sProfilesManagedByIsland.contains(user);
	}
This method should not be called under normal circumstance.
shared/src/main/java/com/oasisfeng/island/util/Users.java