10:35 a.m.
DbPersistenceService needs update for new Hibernate version
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Key: JBPM-758
URL: http://jira.jboss.com/jira/browse/JBPM-758
Project: JBoss jBPM
Issue Type: Bug
Components: Core Engine
Affects Versions: jBPM 3.1.2
Environment: jboss AS 4.0.4, hibernate 3.1 or hibernate 3.2
Reporter: Thomas Klute
Assigned To: Tom Baeyens
Fix For: jBPM 3.1.3
Release of JDBC connections changed with hibernate version > 3.0.
DbPersistenceService now throws exception when trying to close a hibernate session
(because in was closed automatically when the transaction committed).
The exception happens every few seconds when using the jbpm scheduler-service.
See below for stack trace.
See http://www.hibernate.org/250.html#A31 for a detailed description of hibernate-changes
regarding JDBC connections.
FYI: The exception does not roll back the transaction, because it has already been
committed.
Please adapt the code to the new hibernate behaviour. Maybe just comment out the
"throw" of the exception.
I have no idea what code would work with old _and_ new hibernate versions.
We just got the problem integrating jbpm into a jboss AS 4.0.4 using hibernate 3.2.
...
2006-09-28 16:11:53,996 DEBUG [org.jbpm.persistence.db.DbPersistenceService] creating
hibernate session
2006-09-28 16:11:53,998 DEBUG [org.hibernate.jdbc.JDBCContext] TransactionFactory reported
no active transaction; Synchronization not registered
2006-09-28 16:11:53,998 DEBUG [org.hibernate.impl.SessionImpl] opened session at
timestamp: 4749118316527616
2006-09-28 16:11:53,998 DEBUG [org.jbpm.persistence.db.DbPersistenceService] beginning
hibernate transaction
2006-09-28 16:11:53,998 DEBUG [org.hibernate.transaction.JTATransaction] Looking for
UserTransaction under: UserTransaction
2006-09-28 16:11:53,999 DEBUG [org.hibernate.transaction.JTATransaction] Obtained
UserTransaction
2006-09-28 16:11:53,999 DEBUG [org.hibernate.transaction.JTATransaction] begin
2006-09-28 16:11:54,000 DEBUG [org.hibernate.transaction.JTATransaction] Began a new JTA
transaction
2006-09-28 16:11:54,000 DEBUG [org.hibernate.jdbc.JDBCContext] successfully registered
Synchronization
2006-09-28 16:11:54,000 DEBUG [org.jbpm.scheduler.impl.SchedulerThread] checking for
timers
2006-09-28 16:11:54,000 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to open
PreparedStatement (open PreparedStatements: 0, globally: 0)
2006-09-28 16:11:54,000 DEBUG [org.hibernate.jdbc.ConnectionManager] opening JDBC
connection
2006-09-28 16:11:54,000 DEBUG [org.hibernate.SQL] select timer0_.ID_ as col_0_0_ from
JBPM_TIMER timer0_ where (timer0_.EXCEPTION_ is null) and timer0_.ISSUSPENDED_<>1
order by timer0_.DUEDATE_ asc
2006-09-28 16:11:54,001 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to open ResultSet
(open ResultSets: 0, globally: 0)
2006-09-28 16:11:54,001 DEBUG [org.hibernate.impl.IteratorImpl] exhausted results
2006-09-28 16:11:54,001 DEBUG [org.hibernate.impl.IteratorImpl] closing iterator
2006-09-28 16:11:54,001 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to close
ResultSet (open ResultSets: 1, globally: 1)
2006-09-28 16:11:54,001 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to close
PreparedStatement (open PreparedStatements: 1, globally: 1)
2006-09-28 16:11:54,001 DEBUG [org.hibernate.jdbc.ConnectionManager] aggressively
releasing JDBC connection
2006-09-28 16:11:54,001 DEBUG [org.hibernate.jdbc.ConnectionManager] releasing JDBC
connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
2006-09-28 16:11:54,001 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
2006-09-28 16:11:54,002 DEBUG [org.jbpm.svc.Services] closing service
'persistence': org.jbpm.persistence.db.DbPersistenceService@15a9173
2006-09-28 16:11:54,002 DEBUG [org.jbpm.persistence.db.DbPersistenceService] committing
hibernate transaction
2006-09-28 16:11:54,002 DEBUG [org.hibernate.transaction.JTATransaction] commit
2006-09-28 16:11:54,002 DEBUG [org.hibernate.transaction.JTATransaction] Committed JTA
UserTransaction
2006-09-28 16:11:54,002 DEBUG [org.jbpm.persistence.db.DbPersistenceService] closing
hibernate session
2006-09-28 16:11:54,002 ERROR [STDERR] org.jbpm.persistence.JbpmPersistenceException:
couldn't close hibernate session
2006-09-28 16:11:54,002 ERROR [STDERR] at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:191)
2006-09-28 16:11:54,002 ERROR [STDERR] at org.jbpm.svc.Services.close(Services.java:211)
2006-09-28 16:11:54,002 ERROR [STDERR] at
org.jbpm.JbpmContext.close(JbpmContext.java:139)
2006-09-28 16:11:54,002 ERROR [STDERR] at
org.jbpm.scheduler.impl.SchedulerThread.executeTimers(SchedulerThread.java:161)
2006-09-28 16:11:54,002 ERROR [STDERR] at
org.jbpm.scheduler.impl.SchedulerThread.run(SchedulerThread.java:70)
2006-09-28 16:11:54,003 ERROR [STDERR] Caused by: org.hibernate.SessionException: Session
was already closed
2006-09-28 16:11:54,003 ERROR [STDERR] at
org.hibernate.impl.SessionImpl.close(SessionImpl.java:277)
2006-09-28 16:11:54,003 ERROR [STDERR] at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:189)
2006-09-28 16:11:54,003 ERROR [STDERR] ... 4 more
2006-09-28 16:11:54,003 ERROR [org.jbpm.svc.Services] problem closing service
'persistence'
org.jbpm.persistence.JbpmPersistenceException: couldn't close hibernate session
at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:191)
at org.jbpm.svc.Services.close(Services.java:211)
at org.jbpm.JbpmContext.close(JbpmContext.java:139)
at
org.jbpm.scheduler.impl.SchedulerThread.executeTimers(SchedulerThread.java:161)
at org.jbpm.scheduler.impl.SchedulerThread.run(SchedulerThread.java:70)
Caused by: org.hibernate.SessionException: Session was already closed
at org.hibernate.impl.SessionImpl.close(SessionImpl.java:277)
at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:189)
... 4 more
2006-09-28 16:11:54,003 INFO [org.jbpm.scheduler.impl.SchedulerThread] runtime exception
while executing timers
org.jbpm.JbpmException: problem closing services
{persistence=org.jbpm.persistence.JbpmPersistenceException: couldn't close hibernate
session}
at org.jbpm.svc.Services.close(Services.java:223)
at org.jbpm.JbpmContext.close(JbpmContext.java:139)
at
org.jbpm.scheduler.impl.SchedulerThread.executeTimers(SchedulerThread.java:161)
at org.jbpm.scheduler.impl.SchedulerThread.run(SchedulerThread.java:70)
Caused by: org.jbpm.persistence.JbpmPersistenceException: couldn't close hibernate
session
at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:191)
at org.jbpm.svc.Services.close(Services.java:211)
... 3 more
Caused by: org.hibernate.SessionException: Session was already closed
at org.hibernate.impl.SessionImpl.close(SessionImpl.java:277)
at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:189)
... 4 more
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