framework/tests/all-systems/Annotations.java

import java.lang.annotation.Annotation;

@interface Anno {}

public class Annotations {
  void takeAnnotation(Annotation a) {}

  // test that a Tree works (source for Anno is in same compilation unit)
  void takeTree(Anno a1) {
    takeAnnotation(a1);
  }

  // test that an Element works (annotation only available from class file)
  void takeElem(SuppressWarnings a2) {
    takeAnnotation(a2);
  }
}