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Exception while executing timer
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created by <a href="http://community.jboss.org/people/unsavory">Caine Lai</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/537525#537525">View the full discussion</a>
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<div class="jive-rendered-content"><p>Does anyone know why I would be getting the following exception with some of my jbpm 4.0 jobs?  This exception just started appearing in our logs.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>14:32:00,216 ERROR ExecuteJobCmd:40 - exception while executing  'timer[2809804|2010-04-14 12:31:52,000|timer]'<br/> javax.persistence.EntityNotFoundException: Unable to find  org.jbpm.pvm.internal.model.ExecutionImpl with id 2849283<br/>     at  org.hibernate.ejb.Ejb3Configuration$Ejb3EntityNotFoundDelegate.handleEntityNotFound(Ejb3Configuration.java:113)<br/>     at  org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:154)<br/>     at  org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:143)<br/>     at  org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:174)<br/>     at  org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:190)<br/>     at  org.jbpm.pvm.internal.model.ExecutionImpl_$$_javassist_33.signal(ExecutionImpl_$$_javassist_33.java)<br/>     at org.jbpm.pvm.internal.job.TimerImpl.execute(TimerImpl.java:90)<br/>     at org.jbpm.pvm.internal.job.TimerImpl.execute(TimerImpl.java:52)<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.execute(ExecuteJobCmd.java:76)<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.execute(ExecuteJobCmd.java:42)<br/>     at  org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)<br/>     at  org.jbpm.pvm.internal.spring.CommandTransactionCallback.doInTransaction(CommandTransactionCallback.java:50)<br/>     at  org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)<br/>     at  org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:77)<br/>     at  org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:46)<br/>     at  org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)<br/>     at  org.jbpm.pvm.internal.jobexecutor.JobParcel.run(JobParcel.java:48)<br/>     at  java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)<br/>     at  java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)<br/>     at java.util.concurrent.FutureTask.run(FutureTask.java:138)<br/>     at  java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)<br/>     at  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)<br/>     at java.lang.Thread.run(Thread.java:619)<br/> 14:32:00,217  INFO DefaultCommandService:52 - exception while executing  command org.jbpm.pvm.internal.cmd.ExecuteJobCmd@19589e4<br/> java.lang.NullPointerException<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.handleJobExecutionException(ExecuteJobCmd.java:113)<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.execute(ExecuteJobCmd.java:92)<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.execute(ExecuteJobCmd.java:42)<br/>     at  org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)<br/>     at  org.jbpm.pvm.internal.spring.CommandTransactionCallback.doInTransaction(CommandTransactionCallback.java:50)<br/>     at  org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)<br/>     at  org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:77)<br/>     at  org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:46)<br/>     at  org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)<br/>     at  org.jbpm.pvm.internal.jobexecutor.JobParcel.run(JobParcel.java:48)<br/>     at  java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)<br/>     at  java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)<br/>     at java.util.concurrent.FutureTask.run(FutureTask.java:138)<br/>     at  java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)<br/>     at  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)<br/>     at java.lang.Thread.run(Thread.java:619)<br/> 14:32:00,217 ERROR JobParcel:40 - exception in job block<br/> java.lang.NullPointerException<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.handleJobExecutionException(ExecuteJobCmd.java:113)<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.execute(ExecuteJobCmd.java:92)<br/>     at  org.jbpm.pvm.internal.cmd.ExecuteJobCmd.execute(ExecuteJobCmd.java:42)<br/>     at  org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)<br/>     at  org.jbpm.pvm.internal.spring.CommandTransactionCallback.doInTransaction(CommandTransactionCallback.java:50)<br/>     at  org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)<br/>     at  org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:77)<br/>     at  org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:46)<br/>     at  org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)<br/>     at  org.jbpm.pvm.internal.jobexecutor.JobParcel.run(JobParcel.java:48)<br/>     at  java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)<br/>     at  java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)<br/>     at java.util.concurrent.FutureTask.run(FutureTask.java:138)<br/>     at  java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)<br/>     at  java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)<br/>     at java.lang.Thread.run(Thread.java:619)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This is the relevant part of the process definition:</p><p>&lt;!-- See if it is time to notify vendor of contract expiration. --&gt;</p><p>    &lt;decision name="check_rejection_notification_period"&gt;</p><p>        &lt;handler /&gt;</p><p>        &lt;transition name="notify" to="send_expired_email" /&gt;</p><p>        &lt;transition name="wait" to="rejected_timer" /&gt;</p><p>    &lt;/decision&gt;</p><p>    </p><p>    &lt;state name="rejected_timer"&gt;</p><p>        &lt;transition name="timer" to="check_rejection_notification_period" &gt;</p><p>            &lt;timer duedate="1 minute" /&gt; </p><p>        &lt;/transition&gt;</p><p>    &lt;/state&gt;</p></div>
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