code: public java.util.List<CancelSpotFleetRequestsErrorItem> getUnsuccessfulFleetRequests() {
          if (unsuccessfulFleetRequests == null) {
              unsuccessfulFleetRequests = new com.amazonaws.internal.SdkInternalList<CancelSpotFleetRequestsErrorItem>();
          }
          return unsuccessfulFleetRequests;
      }
docs: <p>
  Information about the Spot Fleet requests that are not successfully canceled.
  </p>
  
  @return Information about the Spot Fleet requests that are not successfully canceled.