code: public Fleet withFleetErrors(FleetError... fleetErrors) {
          if (this.fleetErrors == null) {
              setFleetErrors(new java.util.ArrayList<FleetError>(fleetErrors.length));
          }
          for (FleetError ele : fleetErrors) {
              this.fleetErrors.add(ele);
          }
          return this;
      }
docs: <p>
  The fleet errors.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setFleetErrors(java.util.Collection)} or {@link #withFleetErrors(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param fleetErrors
  The fleet errors.
  @return Returns a reference to this object so that method calls can be chained together.