a JUnit test demonstrating how Java treats annotations of inherited methods

AnnotationInheritanceTest.java

import org.junit.Test;

import java.lang.annotation.Annotation;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.reflect.Method;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

public class AnnotationInheritanceTest {

    @Retention(RetentionPolicy.RUNTIME)
    @interface Interesting { }

    class Parent {

        @Interesting
        public void method1() { }

        @Interesting
        public void method2() { }
    }

    class Child extends Parent {

        public void method2() { }
    }

    @Test
    public void methodAnnotationIsInheritedWhenMethodNotOverridden()
            throws NoSuchMethodException {

        assertTrue(methodHasAnnotation(
                Child.class.getMethod("method1"),
                Interesting.class));

        assertFalse(methodHasAnnotation(
                Child.class.getMethod("method2"),
                Interesting.class));
    }

    private boolean methodHasAnnotation(
            Method method,
            Class<? extends Annotation> annotationType
    ) {
        return method.getDeclaredAnnotation(annotationType) != null;
    }
}