10:11 a.m.
Bela Ban created JGRP-1488:
------------------------------
Summary: NPE in concurrent channel creation with shared transport
Key: JGRP-1488
URL: https://issues.jboss.org/browse/JGRP-1488
Project: JGroups
Issue Type: Bug
Affects Versions: 3.0.10
Reporter: Bela Ban
Assignee: Bela Ban
Fix For: 3.0.11, 3.1
The NPE below is caused by calling GET_LOCAL_ADDRESS on all up_prots in a shared
transport. However, when we create a new JChannel, its protocol stack is added to up_prots
*before* the top_prot (RSVP in the case below) is connected to ProtocolStack.
SOLUTION: connect the top protocol to ProtocolStack *before* connecting all protocols to
each other and adding the bottom prot to up_prots in TP.
11:53:23,057 ERROR [org.jboss.msc.service.fail] (ChannelService lifecycle - 1) MSC00001:
Failed to start service jboss.jgroups.channel.capedwarf:
org.jboss.msc.service.StartException in service jboss.jgroups.channel.capedwarf:
java.lang.NullPointerException
at org.jboss.as.clustering.msc.AsynchronousService$1.run(AsynchronousService.java:68)
[jboss-as-clustering-common-7.2.0.Alpha1-SNAPSHOT.jar:7.2.0.Alpha1-SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
[classes.jar:1.6.0_33]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
[classes.jar:1.6.0_33]
at java.lang.Thread.run(Thread.java:680) [classes.jar:1.6.0_33]
at org.jboss.threads.JBossThread.run(JBossThread.java:122)
[jboss-threads-2.0.0.GA.jar:2.0.0.GA]
Caused by: java.lang.NullPointerException
at org.jgroups.protocols.RSVP.up(RSVP.java:192) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.FRAG2.up(FRAG2.java:181) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.FlowControl.up(FlowControl.java:418)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.FlowControl.up(FlowControl.java:418)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.pbcast.GMS.up(GMS.java:889)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:265)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.UNICAST2.up(UNICAST2.java:383)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:602)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.BARRIER.up(BARRIER.java:148)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:143)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.FD.up(FD.java:273) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:288)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.MERGE2.up(MERGE2.java:205)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.Discovery.up(Discovery.java:499)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.TP.fetchLocalAddresses(TP.java:1529)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.TP.start(TP.java:939) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.protocols.UDP.start(UDP.java:225) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.stack.ProtocolStack.startStack(ProtocolStack.java:938)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.JChannel.startStack(JChannel.java:841)
[jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.JChannel.connect(JChannel.java:277) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jgroups.JChannel.connect(JChannel.java:261) [jgroups-3.0.9.Final.jar:3.0.9.Final]
at org.jboss.as.clustering.jgroups.subsystem.ChannelService.start(ChannelService.java:44)
[jboss-as-clustering-jgroups-7.2.0.Alpha1-SNAPSHOT.jar:7.2.0.Alpha1-SNAPSHOT]
at org.jboss.as.clustering.msc.AsynchronousService$1.run(AsynchronousService.java:65)
[jboss-as-clustering-common-7.2.0.Alpha1-SNAPSHOT.jar:7.2.0.Alpha1-SNAPSHOT]
... 4 more
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