in src/main/java/org/apache/sling/junit/performance/runner/PerformanceRunner.java [335:349]
private List<Listener> readListenersFromStaticMethods() throws Throwable {
List<Listener> listeners = new ArrayList<Listener>();
for (FrameworkMethod method : getTestClass().getAnnotatedMethods(Listen.class)) {
Listener listener = (Listener) method.invokeExplosively(null);
if (listener == null) {
throw new IllegalArgumentException("Method " + method.getName() + "() should not return null");
}
listeners.add(listener);
}
return listeners;
}