@Override
        public void run() {
          TombstoneService.REPLICATE_TOMBSTONE_TIMEOUT = 1000;
          TombstoneService.NON_REPLICATE_TOMBSTONE_TIMEOUT = 900;
          TombstoneService.EXPIRED_TOMBSTONE_LIMIT = numEntries;
          TombstoneService.IDLE_EXPIRATION = true;
          TombstoneService.GC_MEMORY_THRESHOLD = 0; // turn this off so heap profile won't cause
          // test to fail
          TombstoneService.MAX_SLEEP_TIME = 500;
        }
Clear all existing transaction listeners and install the given listener.
geode-dunit/src/main/java/org/apache/geode/cache30/MultiVMRegionTestCase.java