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Posted to dev@mina.apache.org by "Maarten Bosteels (JIRA)" <ji...@apache.org> on 2007/09/07 09:48:31 UTC
[jira] Commented: (DIRMINA-435) NullPointerException in
IoServiceListenerSupport
[ https://issues.apache.org/jira/browse/DIRMINA-435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525630 ]
Maarten Bosteels commented on DIRMINA-435:
------------------------------------------
Is this reproducible ?
If so, could you provide us with a simple TestCase ?
Does it only occur under high load ?
> NullPointerException in IoServiceListenerSupport
> ------------------------------------------------
>
> Key: DIRMINA-435
> URL: https://issues.apache.org/jira/browse/DIRMINA-435
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.2
> Environment: WinXP SP 2
> java version "1.5.0_11"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03)
> Java HotSpot(TM) Client VM (build 1.5.0_11-b03, mixed mode, sharing)
> Reporter: Matthew Phillips
>
> This is an odd one, since it occurs on WinXP and not on Mac OS X. The error was seen under 1.5, but also occurs on 1.6. I see the following NPE :
> -----
> Exception trace:
> java.lang.NullPointerException
> at java.util.concurrent.ConcurrentHashMap.hash(Unknown Source)
> at java.util.concurrent.ConcurrentHashMap.putIfAbsent(Unknown Source)
> at org.apache.mina.common.support.IoServiceListenerSupport.fireSessionCreated(IoServiceListenerSupport.java:152)
> at org.apache.mina.transport.socket.nio.SocketIoProcessor.doAddNew(SocketIoProcessor.java:135)
> at org.apache.mina.transport.socket.nio.SocketIoProcessor.access$300(SocketIoProcessor.java:44)
> at org.apache.mina.transport.socket.nio.SocketIoProcessor$Worker.run(SocketIoProcessor.java:444)
> at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:39)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> ------
> The NPE is being caused by IoSession.getServiceAddress () returning null, which then bombs the attempt to use it as a key in the map (IoServiceListenerSupport:151):
> SocketAddress serviceAddress = session.getServiceAddress(); // null
> // Get the session set.
> Set<IoSession> s = new IdentityHashSet<IoSession>();
> Set<IoSession> sessions = managedSessions.putIfAbsent(serviceAddress,
> Collections.synchronizedSet(s));
> This has me stumped. Can anyone help?
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