@Override
      public void run() {
        Mycallback myAfterReceivedImageReply =
            new Mycallback(GIITestHookType.AfterReceivedImageReply, REGION_NAME);
        InitialImageOperation.setGIITestHook(myAfterReceivedImageReply);
      }
P and R are peers, each holds a DR. Each does a few operations to make RVV=P6,R6, RVVGC=P0,R0
for both members. R off line, then run P7. Restart R. It will trigger deltaGII to chunk entry
P7(key1). After that, do clear(). Make sure R should not contain key1 after GII.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/GIIDeltaDUnitTest.java