public void getDeclaredAnnotations() throws Exception {
Annotation[] annotations = Repeatable.class.getDeclaredAnnotations();
assert annotations != null;
assert annotations.length == 1;
MultipleMarkerContainer container = (MultipleMarkerContainer) annotations[0];
MultipleMarker[] markers = container.value();
assert markers != null;
assert markers.length == 2;
assert markers[0].value() == 20;
assert markers[1].value() == 30;