FieldAdderClassVisitor visitor = new FieldAdderClassVisitor(classWriter);
ClassReader classReader = new ClassReader(origBytes);
classReader.accept(visitor, 0);
byte[] newBytes = classWriter.toByteArray();
return newBytes;
}
public static class FieldAdderClassVisitor extends ClassAdapter {
public FieldAdderClassVisitor(ClassVisitor classVisitor) {