code: public Attribute export(JavaClass cl, JavaClass target)
    {
      target.getConstantPool().addUTF8(getName());
        
      OpaqueAttribute attr = new OpaqueAttribute(getName());
  
      byte []value = new byte[_value.length];
      System.arraycopy(_value, 0, value, 0, _value.length);
      
      attr.setValue(value);
  
      return attr;
    }
docs: Clones the attribute