AppStatusBuilder clearAndAddPreviouslyKnownCompletedInstances(List<LlapInstance> llapInstances) {
    clearCompletedLlapInstances();
    for (LlapInstance llapInstance : llapInstances) {
      addNewCompleteLlapInstance(llapInstance);
    }
    return this;
  }
Represents the status of the Llap application.
llap-server/src/java/org/apache/hadoop/hive/llap/cli/status/AppStatusBuilder.java