@Override
      public IMetaStoreClient call() throws IOException, MetaException, LoginException {
        return cache.get(hiveConf);
      }
Check that a *new* client is created if asked from different threads even with
the same hive configuration
@throws ExecutionException
@throws InterruptedException
hcatalog/core/src/test/java/org/apache/hive/hcatalog/common/TestHiveClientCache.java