jessiee white [http://community.jboss.org/people/jesbo] created the discussion "Re: How to add parameter annotation to new Method ?" To view the discussion, visit: http://community.jboss.org/message/639707#639707 -------------------------------------------------------------- if you want to add annotion to argo,you have to add @parameter(name = "arg0") to the parameter.    String addAnnotiontion(@Pparameter(name = "arg0")  String name,String card); use javassist to add annotion .the main train  like the below:   /**       * get constpool       */          AttributeInfo paramAtrributeInfo = methodInfo.getAttribute(ParameterAnnotationsAttribute.visibleTag); // or inVisibleTag      ConstPool parameterConstPool = paramAtrributeInfo.getConstPool();      /**       * param annotation       */      Annotation parameterAnnotation = new Annotation("annotation name", parameterConstPool);      ClassMemberValue parameterMemberValue = new ClassMemberValue("class full name", parameterConstPool);      parameterAnnotation.addMemberValue("value", parameterMemberValue);      /**       * add annotation to dimensional array       */      ParameterAnnotationsAttribute parameterAtrribute = ((ParameterAnnotationsAttribute) paramAtrributeInfo);      Annotation[][] paramArrays = parameterAtrribute.getAnnotations();      int orderNum = position.getOrderNumber();      Annotation[] addAnno = paramArrays[orderNum];      Annotation[] newAnno = null;      if (addAnno.length == 0) {       newAnno = new Annotation[1];      } else {       newAnno = Arrays.copyOf(addAnno, addAnno.length + 1);      }      newAnno[addAnno.length] = parameterAnnotation;      paramArrays[orderNum] = newAnno;      parameterAtrribute.setAnnotations(paramArrays);  -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/639707#639707] Start a new discussion in Javassist at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]