How to upload upload image/file to akamai server using play framework

Question

This is the code in scala how can we do a similar thing in java using the play framework reference: -> Play WS - post multipart/form-data from scala - Bad Request

import akka.stream.scaladsl.FileIO
    import akka.stream.scaladsl.Source
    import play.api.libs.ws.WSClient
    import play.api.mvc.MultipartFormData._
    
    val pathToFile = "./sampleCV.pdf"
    val fileName = "sampleCV.pdf"
    val futureResponse = ws.url(url).withRequestTimeout(Duration.create(55, TimeUnit.SECONDS))
          .addHttpHeaders("authorization" -> s"bearer $access_token")
          .addHttpHeaders("accept" -> "*/*")
          .addHttpHeaders("content-type" -> "multipart/form-data")
          .post(Source(
            FilePart("File", fileName, Option("application/pdf"), FileIO.fromPath(Paths.get(pathToFile)))  :: List()
          ))

I had tried but got 412 as the response code as I was using an HTTP multipart file.