Merge "Fixed SystemService.dumpSupportedUsers()"

    protected void dumpSupportedUsers(@NonNull PrintWriter pw, @NonNull String prefix) {

        final List<UserInfo> allUsers = UserManager.get(mContext).getUsers();

        final List<Integer> supportedUsers = new ArrayList<>(allUsers.size());

        for (UserInfo user : allUsers) {

        for (int i = 0; i < allUsers.size(); i++) {

            final UserInfo user = allUsers.get(i);

            if (isUserSupported(new TargetUser(user))) {

                supportedUsers.add(user.id);

            }

        if (allUsers.isEmpty()) {

        }

        if (supportedUsers.isEmpty()) {

            pw.print(prefix); pw.println("No supported users");

        } else {

            return;

        }

        final int size = supportedUsers.size();

        pw.print(prefix); pw.print(size); pw.print(" supported user");

        if (size > 1) pw.print("s");

        pw.print(": "); pw.println(supportedUsers);

    }

    }

    /**

     * Called when a new user is starting, for system services to initialize any per-user