private void createClientRegionWithRI(VM vm, final int port, final boolean isEmpty) {
    createClientRegion(vm, port, isEmpty, true, -1);
  }
tests for the concurrentMapOperations. there are more tests in ClientServerMiscDUnitTest
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/ConcurrentMapOpsDUnitTest.java