SenderIdMonitor implements ProfileListener, InitializationListener { public void checkSenderIds() { if (illegalGatewaySenderIds != null) { if (!gatewaySenderIdsDifferWarningMessage) { gatewaySenderIdsDifferWarningMessage = true; logger.warn( "Region {} has {} gateway sender IDs. Another member has the same region with {} gateway sender IDs. For the same region, across all members, gateway sender ids should be same.", region.getName(), region.getGatewaySenderIds(), illegalGatewaySenderIds); } } else { if (gatewaySenderIdsDifferWarningMessage) { gatewaySenderIdsDifferWarningMessage = false; logger.warn( "Region {} now has the same gateway sender IDs on all members. The previous problem with them being different has been corrected.", region.getName()); } } if (illegalAsyncEventQueueIds != null) { if (!asyncQueueIdsDifferWarningMessage) { asyncQueueIdsDifferWarningMessage = true; logger.warn( "Region {} has {} AsyncEvent queue IDs. Another member has the same region with {} AsyncEvent queue IDs. For the same region, across all members, AsyncEvent queue IDs should be same.", region.getName(), region.getVisibleAsyncEventQueueIds(), illegalAsyncEventQueueIds); } } else { if (asyncQueueIdsDifferWarningMessage) { asyncQueueIdsDifferWarningMessage = false; logger.warn( "Region {} now has the same AsyncEvent queue IDs on all members. The previous problem with them being different has been corrected.", region.getName()); } } } private  SenderIdMonitor(InternalRegion region, CacheDistributionAdvisor advisor); static SenderIdMonitor createSenderIdMonitor(InternalRegion region,
      CacheDistributionAdvisor advisor); @Override void profileCreated(Profile profile); @Override void profileUpdated(Profile profile); @Override void profileRemoved(Profile profile, boolean destroyed); @Override void initialized(); void update(); @VisibleForTesting boolean getGatewaySenderIdsDifferWarningMessage(); @VisibleForTesting boolean getAsyncQueueIdsDifferWarningMessage(); void checkSenderIds();  }
@Test public void checkPassesByDefault() { senderIdMonitor.checkSenderIds(); }