FileUpload with Jersey/Javax

FileUploadJersey.java

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.StreamingOutput;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.StreamingOutput;

    @POST
    @Path(value = "/fileUpload")
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    @Produces(MediaType.APPLICATION_JSON)
    ResponseEntity addExportForConfiguration(@Context HttpServletRequest request){
        ServletFileUpload servletFileUpload = new ServletFileUpload(new DiskFileItemFactory());
        List<FileItem> items = null;
        items = servletFileUpload.parseRequest(request);
        byte[] item0 = items.get(0).get();
        return ResponseEntity.status(200).build();
    }