private void createClient2WithException(final boolean multiUser, final String authInit,
      final int port1, final int port2, final Properties credentials2, final Properties javaProps2,
      final int zeroConns) {
    client2.invoke(() -> createCacheClient(authInit, credentials2, javaProps2, port1, port2,
        zeroConns, multiUser, AUTHFAIL_EXCEPTION));
  }
NOTE: "final boolean multiUser" is unused
geode-core/src/upgradeTest/java/org/apache/geode/security/ClientAuthenticationTestCase.java