private void startTheLocator(final Properties props, final Properties javaProps, final int port) {
    locatorVM
        .invoke(() -> startLocator(getUniqueName(), port, props, javaProps, ignoredExceptions));
  }
The strategy is to test credential size greater than UDP datagram size.

Here locator will accept the credentials from peer2 and the large credential from the first
peer. Number of members in the DS should be four
geode-core/src/distributedTest/java/org/apache/geode/security/P2PAuthenticationDUnitTest.java