Is this how the Announcer is used?

AnnouncerTest.java

package auctionsniper.util;

import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.integration.junit4.JMock;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.util.EventListener;

@RunWith(JMock.class)
public class AnnouncerTest {

    private final Mockery context = new Mockery();
    private final ExampleListener listener = context.mock(ExampleListener.class);
    private final Example example = new Example();

    @Test
    public void exampleShowingAnActionFiresEvent() {
        context.checking(new Expectations() {{
            one(listener).exampleEvent();
        }});
        example.addListener(listener);
        example.exampleAction();
    }


    private interface ExampleListener extends EventListener {
        public void exampleEvent();
    }

    private static class Example {

        private final Announcer<ExampleListener> announcer = Announcer.to(ExampleListener.class);

        public void addListener(ExampleListener listener) {
            announcer.addListener(listener);
        }

        public void removeListener(ExampleListener listener) {
            announcer.removeListener(listener);
        }

        public void exampleAction() {
            // some old stuff
            announcer.announce().exampleEvent();
        }
    }
}