private void createRegion(DataPolicy dataPolicy) {
    Region<?, ?> region = getCache().createRegionFactory()
        .setDataPolicy(dataPolicy)
        .setScope(Scope.DISTRIBUTED_ACK)
        .create(regionName);

    setRegion(region);
  }
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