[jboss-jira] [JBoss JIRA] Closed: (JBREM-541) null pointer when receiving detection message

null pointer when receiving detection message --------------------------------------------- Key: JBREM-541 URL: http://jira.jboss.com/jira/browse/JBREM-541 Project: JBoss Remoting Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 2.0.0.Beta2 (Boon) Reporter: John Mazzitelli Assigned To: Tom Elrod Fix For: 2.0.0.CR1 (Boon) I am seeing a NullPointerException that causes my multicast detector to fail. I have a JBoss 4.0.4.CR2 install that has my connector and multicast detector deployed. I also deployed the servlet-invoker war because i am using the servlet transport. I start up the JBossAS fine. No errors. I then start up a second JVM that contains my J2SE app that also has a JBoss-Remoting connector and multicast detector in it. After that second VM starts, I can see the JBossAS receives the multicast message, but it throws the following exception: 11:58:53,118 DEBUG [MulticastDetector] Error receiving detection java.lang.NullPointerException at org.jboss.remoting.detection.AbstractDetector.detect(AbstractDetector.java:402) at org.jboss.remoting.detection.multicast.MulticastDetector.listen(MulticastDetector.java:232) at org.jboss.remoting.detection.multicast.MulticastDetector.access$100(MulticastDetector.java:43) at org.jboss.remoting.detection.multicast.MulticastDetector$Listener.run(MulticastDetector.java:260) In that J2SE VM, I get this exception: 12:05:21,106 DEBUG [Remoting Multicast Detector - Listener Thread: 0] (jboss.remoting.detection.multicast.MulticastDetector)- Error receiving detection java.net.SocketException: socket closed at java.net.PlainDatagramSocketImpl.receive0(Native Method) at java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136) at java.net.DatagramSocket.receive(DatagramSocket.java:712) at org.jboss.remoting.detection.multicast.MulticastDetector.listen(MulticastDetector.java:244) at org.jboss.remoting.detection.multicast.MulticastDetector.access$000(MulticastDetector.java:45) at org.jboss.remoting.detection.multicast.MulticastDetector$Listener.run(MulticastDetector.java:289) I have trace mode enabled but those are the only messages I see wrt the detector.