private RuntimeException mapActivityException()

in src/main/java/com/uber/cadence/internal/sync/SyncDecisionContext.java [193:242]
49 lines of code
8 McCabe index (conditional complexity)

  private RuntimeException mapActivityException(Exception failure) {
    if (failure == null) {
      return null;
    }
    if (failure instanceof CancellationException) {
      return (CancellationException) failure;
    }
    if (failure instanceof ActivityTaskFailedException) {
      ActivityTaskFailedException taskFailed = (ActivityTaskFailedException) failure;
      String causeClassName = taskFailed.getReason();
      Class<? extends Exception> causeClass;
      Exception cause;
      try {
        @SuppressWarnings("unchecked") // cc is just to have a place to put this annotation
        Class<? extends Exception> cc = (Class<? extends Exception>) Class.forName(causeClassName);
        causeClass = cc;
        cause = getDataConverter().fromData(taskFailed.getDetails(), causeClass, causeClass);
      } catch (Exception e) {
        cause = e;
      }
      if (cause instanceof SimulatedTimeoutExceptionInternal) {
        // This exception is thrown only in unit tests to mock the activity timeouts
        SimulatedTimeoutExceptionInternal testTimeout = (SimulatedTimeoutExceptionInternal) cause;
        return new ActivityTimeoutException(
            taskFailed.getEventId(),
            taskFailed.getActivityType(),
            taskFailed.getActivityId(),
            testTimeout.getTimeoutType(),
            testTimeout.getDetails(),
            getDataConverter());
      }
      return new ActivityFailureException(
          taskFailed.getEventId(), taskFailed.getActivityType(), taskFailed.getActivityId(), cause);
    }
    if (failure instanceof ActivityTaskTimeoutException) {
      ActivityTaskTimeoutException timedOut = (ActivityTaskTimeoutException) failure;
      return new ActivityTimeoutException(
          timedOut.getEventId(),
          timedOut.getActivityType(),
          timedOut.getActivityId(),
          timedOut.getTimeoutType(),
          timedOut.getDetails(),
          getDataConverter());
    }
    if (failure instanceof ActivityException) {
      return (ActivityException) failure;
    }
    throw new IllegalArgumentException(
        "Unexpected exception type: " + failure.getClass().getName(), failure);
  }