@Override
    protected LlapProtocolClientProxy createLlapProtocolClientProxy(int numThreads,
                                                                    Configuration conf) {
      return llapProxy;
    }
Wrapper class which is responsible for setting up various mocks required for different tests.
llap-tez/src/test/org/apache/hadoop/hive/llap/tezplugins/TestLlapTaskCommunicator.java