@Test
  public void authenticationRequiredExceptionIsNotThrownWhenSecurityIsNotConfigured() {
    VM client = replicate1;
    VM server = replicate2;

    int port = server.invoke(() -> {
      createCacheWithSecurity();
      createRegion(DataPolicy.REPLICATE);
      return createCacheServer();
    });

    client.invoke(() -> {
      createClientCacheWithSecurity();
      createClientRegion(port);

      executeNoResultFunction();
      doPut();
    });
  }
Verify that AuthenticationRequiredException is not thrown when security-* properties are NOT
provided. We have to grep for this exception in logs for any occurrence.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/execute/DistributedRegionFunctionExecutionDUnitTest.java