@Override
      public void afterDestroy(EntryEvent event) {
        LogWriterUtils.getLogWriter().info("Listener received event " + event);
        synchronized (this) {
          if (!event.getKey().equals(MARKER)) {
            counterDestroy++;
          }
        }
      }
create client 2 with 2 regions with sharing a common writer and having a common listener
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/ConflationDistributedTest.java