public static byte[] fileToZip(){

        ZipOutputStream append = null;

        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        try {

            append = new ZipOutputStream(bos);

            ZipEntry e = new ZipEntry("request.xml");

            append.putNextEntry(e);

            append.write(filteToByte("G:\\tmp\\request.xml"));

            append.closeEntry();

            e = new ZipEntry("CONTENT\\content.xml");

            append.putNextEntry(e);

            append.write(filteToByte("G:\\tmp\\content.xml"));

            append.closeEntry();

        } catch (FileNotFoundException ex) {

            Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);

        } catch (IOException ex) {

            Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);

        } finally{

            if(null != append){

                try {

                    append.close();

                } catch (IOException ex) {

                    Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);

                }

            }

        }

        return bos.toByteArray();

    }