How to read HTTP status of the response in the jaxrs-cxf-client generated by Swagger Codegen?

I'm working with a client of a REST API specified through OpenAPI on SwaggerHub. Here I read something like this:

    put:
      tags:
        - load
      summary: adds a Demand item
      operationId: addDemandItem
      description: Adds a Demand item to the system
      security:
        - basicAuth: []
      responses:
        '200':
          description: item correctly saved
        '401':
          description: 'unauthorized'
        '400':
          description: 'invalid input, object invalid'
      parameters:
        - in: path
          name: partnerReferenceId
          schema:
            type: string
          required: true
          description: partnerReferenceId identifying the demand
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DemandItem'
        description: Demand item to add

The auto-generated client (jaxrs-cxf-client) has the following Java code:

    @PUT
    @Path(value = "/demands/{partnerReferenceId}")
    @Consumes(value = {"application/json"})
    @Operation(summary = "adds a Demand item", tags = {})
    @ApiResponses(value = {
        @ApiResponse(responseCode = "200", description = "item correctly saved"),
        @ApiResponse(responseCode = "400", description = "invalid input, object invalid"),
        @ApiResponse(responseCode = "401", description = "unauthorized")})
    public void addDemandItem(@PathParam(value = "partnerReferenceId") String string, DemandItem di);

How can I read the HTTP status of the response?

Read more here: https://stackoverflow.com/questions/65723812/how-to-read-http-status-of-the-response-in-the-jaxrs-cxf-client-generated-by-swa