Bugs item #1051812, was opened at 2004-10-21 15:02
Message generated for change (Comment added) made by starksm
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Category: JBossCX
Group: v4.0
Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Benoit Menendez (bmenendez)
Assigned to: Adrian Brock (ejort)
Summary: Statement Cache Bug
Initial Comment:
Running JBoss 4.0.0, I have a datasource with:
<prepared-statement-cache-size>32</prepared-statement-cache-size>
I get the following exception:
2004-10-21 14:57:25,987 ERROR
[org.jboss.web.localhost.Engine]
StandardWrapperValve[ProInsight Servlet]:
Servlet.service() for servlet ProInsight Servlet threw
exception
java.lang.NullPointerException
at
org.jboss.resource.adapter.jdbc.PreparedStatementCache.ageOut(PreparedStatementCache.java:37)
at
org.jboss.util.LRUCachePolicy$LRUList.demote(LRUCachePolicy.java:346)
at
org.jboss.util.LRUCachePolicy.insert(LRUCachePolicy.java:162)
at
org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.prepareStatement(BaseWrapperManagedConnection.java:348)
at
org.jboss.resource.adapter.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:205)
at
com.proinsight.jdbc.proxy.ConnectionProxy.prepareStatement(ConnectionProxy.java:48)
at com.proinsight.jdbc.JDBCUtil.prepare(JDBCUtil.java:316)
at
com.proinsight.jdbc.JDBCDataSource.select(JDBCDataSource.java:138)
at
com.proinsight.jdbc.JDBCDataSource.select(JDBCDataSource.java:121)
at
com.proinsight.objects.ObjectDataSource.select(ObjectDataSource.java:103)
This does not occur with JBoss 3.2.6 and does not occur
if disable the statement cache in JBoss 4.0.0
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>Comment By: Scott M Stark (starksm)
Date: 2004-12-05 15:28
Message:
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There was still a fix missing for the PreparedStatementCache
itself in 4.0 so 4.0.1RC2 still had the problem. The fix is
in the codebase for the 4.0.1 final release.
----------------------------------------------------------------------
Comment By: Steven Grimm (koreth)
Date: 2004-12-02 23:09
Message:
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I am still seeing this in 4.0.1RC2. Should the fix be
present there?
----------------------------------------------------------------------
Comment By: Adrian Brock (ejort)
Date: 2004-10-21 17:28
Message:
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user_id=9459
I already fixed this earlier this week for the 4.0.1 release.
The fix had not been ported from 3.2.x into 4.0.x
http://cvs.sourceforge.net/viewcvs.py/jboss/jbosscx/src/main/org/jboss/resource/adapter/jdbc/BaseWrapperManagedConnection.java?rev=1.8&view=log
http://cvs.sourceforge.net/viewcvs.py/jboss/jbosscx/src/main/org/jboss/resource/adapter/jdbc/CachedPreparedStatement.java?rev=1.4&view=log
----------------------------------------------------------------------
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