How can I get the method name which has annotation?

Question

A class for example Exam has some methods which has annotation.

@Override
public void add() {
    int c=12;
}

How can I get the method name (add) which has @Override annotation using org.eclipse.jdt.core.IAnnotation?

Answer 1

The IAnnotation is strongly misleading, please see the documentation.

To retrieve the Methods from Class that have some annotation. To do that you have to iterate through all methods and yield only those that have such annotation.

public static Collection<Method> methodWithAnnotation(Class<?> classType, Class<?  extends Annotation> annotationClass) {

  if(classType == null) throw new NullPointerException("classType must not be null");

  if(annotationClass== null) throw new NullPointerException("annotationClass must not be null");  

  Collection<Method> result = new ArrayList<Method>();
  for(Method method : classType.getMethods()) {
    if(method.isAnnotationPresent(annotationClass)) {
       result.add(method);
    }
  }
  return result;
}