Application using Hibernate sometimes have problem to deploy with NPE.
Issue
From the time to time, following error happen. Why this error occur?
2013-10-18 18:05:40,636 WARN [org.hibernate.engine.jdbc.internal.JdbcServicesImpl] HHH000341: Could not obtain connection metadata : Closed Connection
2013-10-18 18:05:40,642 INFO [org.hibernate.engine.jdbc.internal.LobCreatorBuilder] HHH000422: Disabling contextual LOB creation as connection was null
2013-10-18 18:05:40,644 ERROR [org.jboss.msc.service.fail] MSC000001: Failed to start service jboss.persistenceunit."admintest.ear/admintest-dao-4.10-PPP.jar#adminReadonly": org.jboss.msc.service.StartException in service jboss.persistenceunit."admintest.ear/admintest-dao-4.10-PPP.jar#adminReadonly": java.lang.NullPointerException
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:103)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:724)
at org.jboss.threads.JBossThread.run(JBossThread.java:122)
Caused by: java.lang.NullPointerException
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:207)
Environment
Red Hat JBoss Enterprise Application Platform
- 6.1.1
Hibernate
- 4.2.0.SP1
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