[jbpm-issues] [JBoss JIRA] Resolved: (JBPM-1465) NullPointerException on transaction.rollback() in DbPersistenceService

[Alejandro Guizar (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBPM-1465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alejandro Guizar resolved JBPM-1465.
------------------------------------

    Fix Version/s: JBossBPM-3.3.0
       Resolution: Done


> NullPointerException on transaction.rollback() in DbPersistenceService
> ----------------------------------------------------------------------
>
>                 Key: JBPM-1465
>                 URL: https://jira.jboss.org/jira/browse/JBPM-1465
>             Project: JBoss jBPM
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: SOA 4.2 CP02, jPDL 3.2.3
>            Reporter: Martin Putz
>            Assignee: Alejandro Guizar
>             Fix For: JBossBPM-3.3.0
>
>
> We are having NullPointerException from DbPersistenceService when Hibernate throws Exception on close() method. The line is transaction.rollback(); in rollback() method. My two cents is this code should be embraced with "if ( isTransactionEnabled && (transaction != null) )" statement, because we are using external JDBC Connection provider, and the transaction reference never be set.
> All calls to the rollback() method in DbPersistenceService are already preceded by a check for
>    if ( (isTransactionEnabled)
>         && (transaction!=null)
>       ) {
> except this one after an exception has happened during the Hibernate session.flush call:
>     Exception flushException = flushSession();
>     if (flushException!=null) {
>       rollback();                         // missing check if there is a transaction 
>       closeSession();
>       closeConnection();
>       throw new JbpmPersistenceException("hibernate flush failed", flushException);
>     }

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