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https://issues.apache.org/jira/browse/OPENJPA-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13411399#comment-13411399
]
Daniel Persson commented on OPENJPA-2193:
-----------------------------------------
After running about 20 rounds of performance testing I can say that the patch
will make the problem less prevalent but connections will be freed from time to
time when they are still active.
So it's not a solution to solve the issue but a patch for the problem in the
meantime.
> Nullpointer exception when persisting object during high load
> -------------------------------------------------------------
>
> Key: OPENJPA-2193
> URL: https://issues.apache.org/jira/browse/OPENJPA-2193
> Project: OpenJPA
> Issue Type: Bug
> Reporter: Daniel Persson
> Priority: Minor
> Attachments: patch-tomcat-pooling-fix.patch
>
>
> During high load and many persists _conn is null during commit.
> Caused by: <openjpa-2.2.0-r422266:1244990 nonfatal general error>
> org.apache.openjpa.persistence.PersistenceException: null
> at
> org.apache.openjpa.kernel.BrokerImpl.afterCompletion(BrokerImpl.java:2034)
> at
> org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:94)
> at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1514)
> at
> org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:933)
> at
> org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:570)
> ... 29 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.commit(JDBCStoreManager.java:196)
> at
> org.apache.openjpa.kernel.DelegatingStoreManager.commit(DelegatingStoreManager.java:95)
> at
> org.apache.openjpa.datacache.DataCacheStoreManager.commit(DataCacheStoreManager.java:88)
> at
> org.apache.openjpa.kernel.DelegatingStoreManager.commit(DelegatingStoreManager.java:95)
> at
> org.apache.openjpa.kernel.BrokerImpl.endStoreManagerTransaction(BrokerImpl.java:1471)
> at
> org.apache.openjpa.kernel.BrokerImpl.endTransaction(BrokerImpl.java:2351)
> at
> org.apache.openjpa.kernel.BrokerImpl.afterCompletion(BrokerImpl.java:2010)
> ... 33 more
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