private void checkCallingUidAgainstAuthenticator(Account account) {
    final int uid = Binder.getCallingUid();
    if (account == null || !hasAuthenticatorUid(account.type, uid)) {
        String msg = "caller uid " + uid + " is different than the authenticator's uid";
        Log.w(TAG, msg);
        throw new SecurityException(msg);
    }
    if (Log.isLoggable(TAG, Log.VERBOSE)) {
        Log.v(TAG, "caller uid " + uid + " is the same as the authenticator's uid");
    }
}