public byte[] transform(byte[] arg0, int arg1, int arg2) {
        ClassReader cr = null;
        ClassWriter cw = null;
        cr = new ClassReader(arg0);
        cw = new ClassWriter(cr, ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
        //cr.accept(cw,ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS );
        return cw.toByteArray();
    }