public void checkSuccess() throws Exception {
      if (oneDestroy && oneCreate) {
        // chill
      } else {
        fail("Didn't get both events. oneDestroy=" + oneDestroy + " oneCreate=" + oneCreate);
      }
    }
@return first key found on the given member
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/RemoteCQTransactionDUnitTest.java