Find Method Arguments of annotated Method using Java Annotation Processor?

Question

I have the following annotation:

@Target(ElementType.METHOD)
public @interface MyAnn {
}

and a method annotated with @MyAnn:

  @MyAnn
  Object myMehtod(Object x) {
  ...
  }

Using a Java annotation processor I get the annotated element as:

Element annotatedElement // = myMehtod 

1. How do I get the return type of this method?
2. How do I get the arguments of this method?
3. How do I get the name of the arguments of this method?

Answer 1

Here is my solution:

ExecutableType executableType = (ExecutableType)annotatedElement.asType();
List<? extends TypeMirror> parameters = executableType.getParameterTypes();
TypeMirror param1 = parameters.get(0);
DeclaredType declaredType = (DeclaredType)param1;
List<? extends AnnotationMirror> anns = ((TypeElement)declaredType.asElement()).getAnnotationMirrors( );