JBoss Community

Timer Job - SingleSessionCommandService - Could not commit session

created by tmag in jBPM - View the full discussion

We are prototyping a process with some timer jobs using JBPM5.3 . And this process is made to be persistent with MySQL.

When we are reloading a session from database with some overdue timer jobs - seeing the following exception in the logs .

Did anyone face this issue before? What am missing? Please help.

Hibernate: select sessioninf0_.id as id2_0_, sessioninf0_.lastModificationDate as lastModi2_2_0_, sessioninf0_.rulesByteArray as rulesByt3_2_0_, sessioninf0_.startDate as startDate2_0_, sessioninf0_.OPTLOCK as OPTLOCK2_0_ from SessionInfo sessioninf0_ where sessioninf0_.id=?

ERROR SingleSessionCommandService - Could not commit session

java.lang.NullPointerException

at org.drools.persistence.SingleSessionCommandService.execute(SingleSessionCommandService.java:367)

at org.drools.persistence.jpa.JpaTimerJobInstance.call(JpaTimerJobInstance.java:34)

at org.drools.persistence.jpa.JpaTimerJobInstance.call(JpaTimerJobInstance.java:14)

at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)

at java.util.concurrent.FutureTask.run(FutureTask.java:166)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

at java.lang.Thread.run(Thread.java:722)

WARN Preparer - executing transaction with 0 enlisted resource

ERROR JpaTimerJobInstance - Unable to execute timer job!