The implementation of TestReplicationStatus.waitOnMetricsReport is incorrect

  private List<ReplicationLoadSource> waitOnMetricsReport(int greaterThan, ServerName serverName)
    throws IOException {
    ClusterMetrics metrics = hbaseAdmin.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS));
    List<ReplicationLoadSource> list =
      metrics.getLiveServerMetrics().get(serverName).getReplicationLoadSourceList();
    while (list.size() <= greaterThan) {
      Threads.sleep(1000);
    }
    return list;
  }