private void initCompletionEvents() { if (this.completionEvents != null) { return; } GetTaskAttemptCompletionEventsResponseProtoOrBuilder p = viaProto ? proto : builder; List<TaskAttemptCompletionEventProto> list = p.getCompletionEventsList(); this.completionEvents = new ArrayList<TaskAttemptCompletionEvent>(); for (TaskAttemptCompletionEventProto c : list) { this.completionEvents.add(convertFromProtoFormat(c)); } }