Help on class anotation

[theyurinator]

Hello,

I am new to Javassist, so excuse me for all the things I do not know yet.

I am having trouble adding a class annotation. I do exactly what the AnnotationsAttribute API page sample does:

ClassFile cf = ... ;
ConstPool cp = cf.getConstPool();
AnnotationsAttribute attr
= new AnnotationsAttribute(cp, AnnotationsAttribute.visibleTag);
Annotation a = new Annotation("Author", cp);
a.addMemberValue("name", new StringMemberValue("Chiba", cp));
attr.setAnnotation(a);
cf.addAttribute(attr);
cf.setVersionToJava5();

But when I create this page, using ct.write(), I just get a class which extends an Object with an empty constructor, but no annotation.

Any insight?

Thank you.

[theyurinator]

To be a little more specific, this is the exact code I have

public static void main(String[] args) {
 ClassPool pool = ClassPool.getDefault();
 CtClass cc = pool.makeClass("sample");
 ClassFile cf = cc.getClassFile();
 ConstPool cp = cf.getConstPool();

 AnnotationsAttribute attr = new AnnotationsAttribute(cp, AnnotationsAttribute.visibleTag);
 Annotation a = new Annotation("Author", cp);
 a.addMemberValue("name", new StringMemberValue("Chiba", cp));
 attr.setAnnotation(a);
 cf.addAttribute(attr);
 cf.setVersionToJava5();

 try {
 cc.writeFile();
 } catch (NotFoundException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 } catch (CannotCompileException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }

and this is what I see with javap as a result.

public class sample extends java.lang.Object{
 public sample();
}

I don't really understand what I am doing wrong? If I step through with the debugger, I do see the AnnotationsAttribute added to the ClassFile object, and the Annotation object is added to the AnnotationsAttribute object.

[theyurinator]

Please ignore this topic, I have realized that javap does not printout annotations unless I put the -verbose flag on.