Applet JAVA tratar los datos enviados por la applet con PHP

[OWNED91]

Encontre un plugin para escanear desde un navegador web a traves de twain, pero el problema es que no se nada de JAVA y no se como tratar la información con PHP, viendo parte del codigo miro que hace una conexión POST pero no se cual es nombre de la variable para tratarla con $_POST['nombre de la variable de la applet java'], de antemano muchas gracias.

Este es parte del codigo, por cierto la applet java ya viene compilada este código lo saque decompilando el .jar con Java Decompiler

Código Java:

Image image = MorenaStudio.MainPanel.this.selected.getImage();
          int imageHeight = image.getHeight(null);
          int imageWidth = image.getHeight(null);
          
          int sliceHeight = 512;
          int sliceCount = imageHeight / sliceHeight;
          if (imageHeight % sliceHeight > 0) {
            sliceCount++;
          }
          int sliceNum = 0;
          int thisSliceHeight = sliceHeight;
          String finalImageServerPath = "";
          for (int sliceTop = 0; sliceTop < imageHeight; sliceTop += sliceHeight)
          {
            if (imageHeight - sliceTop < sliceHeight) {
              thisSliceHeight = imageHeight - sliceTop;
            } else {
              thisSliceHeight = sliceHeight;
            }
            sliceNum++;
            System.out.println("Slice " + sliceNum + " of " + sliceCount);
            MorenaStudio.MainPanel.this.status.setText("Sending image to server...");
            BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), thisSliceHeight, 1);
            bufferedImage.createGraphics().drawImage(image, 0, 0 - sliceTop, null);
            System.out.println("Allocated bufferedImage,Total:," + Math.round((float)(Runtime.getRuntime().totalMemory() / 1024L)) + ",Max:," + Math.round((float)(Runtime.getRuntime().maxMemory() / 1024L)) + ",Free:," + Math.round((float)(Runtime.getRuntime().freeMemory() / 1024L)));
            
 
 
 
 
 
 
            File tmp = File.createTempFile("scan_", "_" + String.format("%04d", new Object[] { Integer.valueOf(sliceNum) }));
            
            tmp.deleteOnExit();
            ImageIO.write(bufferedImage, "jpg", tmp);
            System.out.println("Wrote JPG to temp file,Total:," + Math.round((float)(Runtime.getRuntime().totalMemory() / 1024L)) + ",Max:," + Math.round((float)(Runtime.getRuntime().maxMemory() / 1024L)) + ",Free:," + Math.round((float)(Runtime.getRuntime().freeMemory() / 1024L)));
            URL uploadURL;
            URL uploadURL;
            if (MorenaStudio.MainPanel.this.documentBase != null) {
              uploadURL = new URL(MorenaStudio.MainPanel.this.documentBase, "upload.php?slice_index=" + sliceNum + "&slice_total=" + sliceCount + "&uid=" + MorenaStudio.MainPanel.this.userId + "&auth=" + MorenaStudio.MainPanel.this.userAuth + "&twain_source=" + URLEncoder.encode(MorenaStudio.MainPanel.this.twainSourceName, "UTF-8"));
            } else {
              uploadURL = new URL("http://scanandupload.com/upload.php?slice_index=" + sliceNum + "&slice_total=" + sliceCount + "&uid=" + MorenaStudio.MainPanel.this.userId + "&auth=" + MorenaStudio.MainPanel.this.userAuth + "&twain_source=" + URLEncoder.encode(MorenaStudio.MainPanel.this.twainSourceName, "UTF-8"));
            }
            System.out.println("documentBase:" + MorenaStudio.MainPanel.this.documentBase);
            System.out.println("Uploading to: " + uploadURL);
            
            HttpURLConnection connection = (HttpURLConnection)uploadURL.openConnection();
            connection.setRequestMethod("POST");
            connection.setDoOutput(true);
            connection.setUseCaches(false);
            connection.setDefaultUseCaches(false);
            connection.setRequestProperty("content-type", "img/jpeg");
            
            connection.setRequestProperty("twain-source", MorenaStudio.MainPanel.this.twainSourceName);
            connection.setRequestProperty("slice-total", sliceCount);
            connection.setRequestProperty("slice-index", sliceNum);
            
            OutputStream out = connection.getOutputStream();
            
 
            FileInputStream is = new FileInputStream(tmp);
            byte[] buffer = new byte[4096];
            int bytes_read;
            while ((bytes_read = is.read(buffer)) != -1)
            {
              int bytes_read;
              out.write(buffer, 0, bytes_read);
            }
            out.close();
            InputStream in = connection.getInputStream();
            int c;
            while ((c = in.read()) != -1)
            {
              int c;
              System.err.write(c);
              System.out.print((char)c);
            }
            in.close();
            System.out.println("Uploaded File,Total:," + Math.round((float)(Runtime.getRuntime().totalMemory() / 1024L)) + ",Max:," + Math.round((float)(Runtime.getRuntime().maxMemory() / 1024L)) + ",Free:," + Math.round((float)(Runtime.getRuntime().freeMemory() / 1024L)));
            
            finalImageServerPath = connection.getHeaderField("scan-img-path");
          }
          if (!MorenaStudio.MainPanel.this.inAppletViewer)
          {
            URL nextURL = new URL("javascript:onScanFinished(\"" + finalImageServerPath + "\")");
            if (MorenaStudio.MainPanel.this.appletContext != null) {
              MorenaStudio.MainPanel.this.appletContext.showDocument(nextURL);
            } else {
              System.out.print("No applet context so didn't forward the browser.");
            }
          }
          System.out.println("Uploaded file to " + finalImageServerPath);
          MorenaStudio.MainPanel.this.status.setText("Scan is uploaded.")