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Posted to dev@mina.apache.org by "Emmanuel Lecharny (JIRA)" <ji...@apache.org> on 2010/01/13 02:22:54 UTC
[jira] Resolved: (DIRMINA-679) NullPointerException in
ProtocolCodecFilter.filterWrite
[ https://issues.apache.org/jira/browse/DIRMINA-679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Emmanuel Lecharny resolved DIRMINA-679.
---------------------------------------
Resolution: Fixed
Applied a patch to throw a checked exception instead of a NPE.
http://svn.apache.org/viewvc?rev=898592&view=rev
> NullPointerException in ProtocolCodecFilter.filterWrite
> -------------------------------------------------------
>
> Key: DIRMINA-679
> URL: https://issues.apache.org/jira/browse/DIRMINA-679
> Project: MINA
> Issue Type: Bug
> Affects Versions: 2.0.0-M4
> Reporter: John J. Franey
> Fix For: 2.0.0-RC2
>
> Attachments: FilterReplaceFix.diff
>
>
> Looks like filterWrite obtains a reference from the session's attributes, but the desired attribute is not there.
> I am running max of 250 datagram sockets under load test for my application. Connections last about 60 seconds and released. A new connection is made to keep the total number of active connections up to 250.
> Over a period of two hours running this load test, this exception occured twice.
> org.apache.mina.filter.codec.ProtocolEncoderException: java.lang.NullPointerException
> at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:312)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$7(DefaultIoFilterChain.java:501)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:814)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:740)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
> at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:418)
> at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:359)
> ....
> Caused by: java.lang.NullPointerException
> at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:297)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:814)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:741)
> at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
> at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:359)
> ....
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