@Override
    public synchronized void locatorsDiscovered(List locators) {
      discoveredLocators.addAll(locators);
      notifyAll();
    }
Validate whether all the attributes set on AsyncEventQueueFactory are set on the sender
underneath the AsyncEventQueue.
geode-dunit/src/main/java/org/apache/geode/internal/cache/wan/AsyncEventQueueTestBase.java