WingtipsRequestSpanCompletionAsyncListener implements AsyncListener { @Override public void onError(AsyncEvent event) { } WingtipsRequestSpanCompletionAsyncListener(
        TracingState originalRequestTracingState,
        HttpTagAndSpanNamingStrategy<HttpServletRequest, HttpServletResponse> tagAndNamingStrategy,
        HttpTagAndSpanNamingAdapter<HttpServletRequest, HttpServletResponse> tagAndNamingAdapter
    ); @Override void onComplete(AsyncEvent event); @Override void onTimeout(AsyncEvent event); @Override void onError(AsyncEvent event); @Override void onStartAsync(AsyncEvent event);  }
@Test public void onError_does_nothing() { implSpy.onError(asyncEventMock); verify(implSpy).onError(asyncEventMock); verifyNoMoreInteractions(implSpy); verifyZeroInteractions(asyncEventMock); }