src/main/java/com/uber/cadence/internal/testservice/StateMachines.java [993:1009]:
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    if (attemptActivityRetry(ctx, request.getReason(), data)) {
      return INITIATED;
    }
    ActivityTaskFailedEventAttributes a =
        new ActivityTaskFailedEventAttributes()
            .setIdentity(request.getIdentity())
            .setScheduledEventId(data.scheduledEventId)
            .setDetails(request.getDetails())
            .setReason(request.getReason())
            .setIdentity(request.getIdentity())
            .setStartedEventId(data.startedEventId);
    HistoryEvent event =
        new HistoryEvent()
            .setEventType(EventType.ActivityTaskFailed)
            .setActivityTaskFailedEventAttributes(a);
    ctx.addEvent(event);
    return FAILED;
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src/main/java/com/uber/cadence/internal/testservice/StateMachines.java [1014:1030]:
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    if (attemptActivityRetry(ctx, request.getReason(), data)) {
      return INITIATED;
    }
    ActivityTaskFailedEventAttributes a =
        new ActivityTaskFailedEventAttributes()
            .setIdentity(request.getIdentity())
            .setScheduledEventId(data.scheduledEventId)
            .setDetails(request.getDetails())
            .setReason(request.getReason())
            .setIdentity(request.getIdentity())
            .setStartedEventId(data.startedEventId);
    HistoryEvent event =
        new HistoryEvent()
            .setEventType(EventType.ActivityTaskFailed)
            .setActivityTaskFailedEventAttributes(a);
    ctx.addEvent(event);
    return FAILED;
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