在scala中覆盖java接口会产生“方法无法覆盖”。不使用override会产生“已在范围内定义的方法”

Question

我正在尝试在scala项目中使用swagger-codegen生成的接口。这是为我的方法生成的代码：

    @ApiOperation(value = "", nickname = "submitJob", notes = "Execute a job", response = GetJob.class, tags={ "jobs", })
@ApiResponses(value = {
    @ApiResponse(code = 200, message = "Get job info", response = GetJob.class) })
@RequestMapping(value = "/api/v1/jobs/{requestId}",
    produces = { "application/json" }, 
    method = RequestMethod.PUT)
default ResponseEntity<GetJob> submitJob(@ApiParam(value = "",required=true) @PathVariable("requestId") UUID requestId,@ApiParam(value = "Job to be submitted" ,required=true )  @Valid @RequestBody JobRequest body) {
    if(getObjectMapper().isPresent() && getAcceptHeader().isPresent()) {
        if (getAcceptHeader().get().contains("application/json")) {
            try {
                return new ResponseEntity<>(getObjectMapper().get().readValue("\"\"", GetJob.class), HttpStatus.NOT_IMPLEMENTED);
            } catch (IOException e) {
                log.error("Couldn't serialize response for content type application/json", e);
                return new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR);
            }
        }
    } else {
        log.warn("ObjectMapper or HttpServletRequest not configured in default ApiApi interface so no example is generated");
    }
    return new ResponseEntity<>(HttpStatus.NOT_IMPLEMENTED);
}

我试图用这个覆盖它：

  @ApiOperation(value = "", nickname = "submitJob", notes = "Execute a 
job", response = classOf[GetJob], tags = Array("jobs"))
  @ApiResponses(value = Array(new ApiResponse(code = 200, message = 
"Get job info", response = classOf[GetJob])))
  @RequestMapping(value = Array("/api/v1/jobs/{requestId}"), produces = 
Array("application/json"), method = Array(RequestMethod.PUT)) 
  override def submitJob(@ApiParam(value = "", required = true) 
    @PathVariable("requestId") requestId: UUID, @ApiParam(value = "Job to 
    be submitted", required = true) @Valid @RequestBody body: JobRequest): 
    ResponseEntity[GetJob] = {
 // my method here
}

如果我不使用覆盖，我会得到一个“已在范围内定义的方法”错误。如果我使用覆盖，我会得到“方法无法覆盖”。

是什么给出了？