Modified get DB object of Runnable
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 54c97d8..79ed3ed 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/floodlightlistener/NetworkGraphPublisher.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/floodlightlistener/NetworkGraphPublisher.java
@@ -151,7 +151,7 @@
     }
 
     protected void switchCleanup() {
-    	op.close();
+    	//op.close();
     	Iterable<ISwitchObject> switches = op.getActiveSwitches();
     	
     	log.debug("Checking for inactive switches");