Use original ThreadPool specific name,
so that user can correlate other Task using the same Worker Thread afterwards.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/floodlightlistener/NetworkGraphPublisher.java b/src/main/java/net/onrc/onos/ofcontroller/floodlightlistener/NetworkGraphPublisher.java
index d1e7387..22241ce 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/floodlightlistener/NetworkGraphPublisher.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/floodlightlistener/NetworkGraphPublisher.java
@@ -83,7 +83,7 @@
         @Override
         public void run() {
             String old = Thread.currentThread().getName();
-            Thread.currentThread().setName("SwitchCleanup " + Thread.currentThread().getId());
+            Thread.currentThread().setName("SwitchCleanup@" + old);
             try {
             	log.debug("Running cleanup thread");
                 switchCleanup();