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| Who | When | What | Removed | Added |
|---|---|---|---|---|
| Jitka Kozana | 2013-10-31 08:10:16 UTC | CC | jkudrnac | |
| QA Contact | jkudrnac | |||
| Rostislav Svoboda | 2013-10-31 12:08:49 UTC | CC | rsvoboda | |
| mark yarborough | 2013-10-31 12:11:20 UTC | CC | dandread, jawilson, jdoyle, myarboro | |
| David M. Lloyd | 2013-10-31 12:28:51 UTC | Component | MSC | Remoting |
| Docs Contact | rdickens | |||
| Summary | MSC: Concurrent modification exception during server shutdown | Remoting subsystem: Concurrent modification exception during server shutdown | ||
| Brian Stansberry | 2013-10-31 15:45:31 UTC | CC | brian.stansberry | |
| mark yarborough | 2013-11-01 17:55:00 UTC | Target Milestone | --- | CR1 |
| Brian Stansberry | 2013-11-07 20:40:14 UTC | Status | NEW | POST |
| Assignee | david.lloyd | brian.stansberry | ||
| Brian Stansberry | 2013-11-07 20:40:44 UTC | Target Release | --- | EAP 6.2.0 |
| Brian Stansberry | 2013-11-08 04:21:09 UTC | Status | POST | MODIFIED |
| Paul Gier | 2013-11-11 03:18:52 UTC | Status | MODIFIED | ON_QA |
| Jitka Kozana | 2013-11-11 13:00:42 UTC | Status | ON_QA | VERIFIED |
| Brian Stansberry | 2013-11-21 02:22:33 UTC | Doc Text | Cause: A service in the remoting subsystem was iterating over a collection in a non-thread-safe manner. Consequence: Occasional during server shutdown the server log would include the following. Shutdown would otherwise proceed normally: WARN [org.jboss.msc.service.fail] (MSC service thread 1-55) MSC000004: Failure during stop of service jboss.remoting.endpoint.management.channel.management: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) [rt.jar:1.6.0_45] at java.util.HashMap$KeyIterator.next(HashMap.java:828) [rt.jar:1.6.0_45] at java.util.AbstractCollection.addAll(AbstractCollection.java:305) [rt.jar:1.6.0_45] at java.util.HashSet.<init>(HashSet.java:100) [rt.jar:1.6.0_45] at org.jboss.as.remoting.AbstractChannelOpenListenerService.stop(AbstractChannelOpenListenerService.java:123) ... Fix: Iteration over the collection is now done in a thread safe manner, with the collection object's monitor held by the iterating thread. Result: ConcurrentModificationException is no longer thrown. |
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| Lucas Costi | 2013-12-02 05:56:32 UTC | CC | lcosti | |
| Doc Text | Cause: A service in the remoting subsystem was iterating over a collection in a non-thread-safe manner. Consequence: Occasional during server shutdown the server log would include the following. Shutdown would otherwise proceed normally: WARN [org.jboss.msc.service.fail] (MSC service thread 1-55) MSC000004: Failure during stop of service jboss.remoting.endpoint.management.channel.management: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) [rt.jar:1.6.0_45] at java.util.HashMap$KeyIterator.next(HashMap.java:828) [rt.jar:1.6.0_45] at java.util.AbstractCollection.addAll(AbstractCollection.java:305) [rt.jar:1.6.0_45] at java.util.HashSet.<init>(HashSet.java:100) [rt.jar:1.6.0_45] at org.jboss.as.remoting.AbstractChannelOpenListenerService.stop(AbstractChannelOpenListenerService.java:123) ... Fix: Iteration over the collection is now done in a thread safe manner, with the collection object's monitor held by the iterating thread. Result: ConcurrentModificationException is no longer thrown. | A service in the remoting subsystem would iterate over a collection in a non-thread-safe manner. As a result of this issue, a `ConcurrentModificationException` exception would occasionally be thrown during server shutdown. Other than this exception, the shutdown would complete normally. ---- WARN [org.jboss.msc.service.fail] (MSC service thread 1-55) MSC000004: Failure during stop of service jboss.remoting.endpoint.management.channel.management: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) [rt.jar:1.6.0_45] at java.util.HashMap$KeyIterator.next(HashMap.java:828) [rt.jar:1.6.0_45] at java.util.AbstractCollection.addAll(AbstractCollection.java:305) [rt.jar:1.6.0_45] at java.util.HashSet.<init>(HashSet.java:100) [rt.jar:1.6.0_45] at org.jboss.as.remoting.AbstractChannelOpenListenerService.stop(AbstractChannelOpenListenerService.java:123) ... ---- This issue has been fixed in this release of JBoss EAP 6. Iteration over the collection is now done in a thread-safe manner, with the collection object's monitor held by the iterating thread. As a result, `ConcurrentModificationException` exceptions are no longer thrown. |
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| mark yarborough | 2013-12-15 16:20:32 UTC | Status | VERIFIED | CLOSED |
| Resolution | --- | CURRENTRELEASE | ||
| Last Closed | 2013-12-15 11:20:32 UTC |
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