@Override
          public void afterCommit(TransactionEvent e) {
            assertEquals(6, e.getEvents().size());
            for (final org.apache.geode.cache.CacheEvent<?, ?> cacheEvent : e.getEvents()) {
              EntryEvent ee = (EntryEvent) cacheEvent;
              assertEquals(callbackArg, ee.getCallbackArgument());
              assertEquals(true, ee.isCallbackArgumentAvailable());
            }
          }
Test the getCallbackArgument in light of bug 34075.

@since GemFire 5.0
geode-core/src/distributedTest/java/org/apache/geode/cache30/CallbackArgDUnitTest.java