### Question:
MentionsApplicationReadyEventListener extends AbstractEventListener implements Initializable { @Override public void initialize() throws InitializationException { if (this.contextProvider.get() != null) { this.eventExecutor.startThreads(); } } MentionsApplicationReadyEventListener(); @Override void onEvent(Event event, Object source, Object data); @Override void initialize();  }### Answer:
@Test void initialize() { verify(this.eventExecutor).startThreads(); }