@Override
      public void afterCreate(EntryEvent event) {
        if ((Long) event.getKey() == 900) {
          cache.getLogger().fine(" Gateway sender is killed by a test");
          cache.close();
          cache.getDistributedSystem().disconnect();
        }
      }
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