protected void printUsageAndExit(Options options, int exitCode) throws ExitCodeException {
    HelpFormatter formatter = new HelpFormatter();
    formatter.printHelp("Thrift", null, options,
      "To start the Thrift server run 'hbase-daemon.sh start thrift' or " + "'hbase thrift'\n"
        + "To shutdown the thrift server run 'hbase-daemon.sh stop "
        + "thrift' or send a kill signal to the thrift server pid",
      true);
    throw new ExitCodeException(exitCode, "");
  }
the Jetty server, not null means the HTTP server is started, for test only
@return the http server
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/ThriftServer.java