private void doPut() {
    Region<String, String> region = getRegion();
    region.put("K1", "B1");
  }
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