JavaAssist在类和方法

Question

我正在尝试向类和方法添加注释。我正在使用javaassist创建类。我尝试了下面的代码，但它没有为类和方法添加注释。

    ClassFile ccFile = cc.getClassFile();
    ConstPool cp = ccFile.getConstPool();
    AnnotationsAttribute attr = new AnnotationsAttribute(cp, AnnotationsAttribute.visibleTag);
    Annotation as = new Annotation("WebService", cp);
    attr.setAnnotation(as);
    ccFile.addAttribute(attr);

    attM = new AnnotationsAttribute(cp, AnnotationsAttribute.visibleTag);
    Annotation am = new Annotation("WebMethod", cp);
    attM.setAnnotation(am);

    String methodString ="...";
    CtMethod method = CtNewMethod.make(methodString, cc);
    method.getMethodInfo().addAttribute(attM);
    cc.addMethod(method);

System.out.println("cc annotation: "+cc.getAvailableAnnotations().length);

cc注释：0

非常感谢这里的任何帮助/指示。谢谢！