public static IMetaStoreClient newSynchronizedClient(
      IMetaStoreClient client) {
    return (IMetaStoreClient) Proxy.newProxyInstance(
      HiveMetaStoreClient.class.getClassLoader(),
      new Class[]{IMetaStoreClient.class},
      new SynchronizedHandler(client));
  }
Creates a synchronized wrapper for any {@link IMetaStoreClient}.
This may be used by multi-threaded applications until we have
fixed all reentrancy bugs.

@param client unsynchronized client
@return synchronized client
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java