@Override
    public int hashCode() {
      GemFireCacheImpl.getInstance().getLogger()
          .fine("In TestObject2.hashCode() : " + _id);
      return _id;
    }
Stops the cache server that serves up the given cache.
geode-cq/src/distributedTest/java/org/apache/geode/cache/query/dunit/PdxQueryCQTestBase.java