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Activiti Border Timer Events

Question asked by coner on Jul 21, 2011
Latest reply on Sep 22, 2011 by mathiasd
Activiti 5.6, Eclipse Plugin

I have been having trouble creating border timer events successfully.

My model is a simple diagram with 2 service tasks, they only have System.out.println's inside of them.

I have been trying to setup the diagram such that the first event executes, and if it takes > 3 seconds to complete, the second task will also execute.  Then the program will end.

Start -> Print Hello -> Exit
            Timer:LimitExceeded
            Print Slow Process -> Exit

this example is nearly identical to the one in the userguide except i am using PT4S instead of PT4H.  I have been testing the timer by using Thread.sleep() in the first service task.

Also <property name="jobExecutorActivate" value="true" /> is in the activiti.cfg.xml file.

the error that appears is:

Jul 21, 2011 5:48:15 PM org.activiti.engine.impl.interceptor.CommandContext close
SEVERE: Error while closing command context
java.lang.NullPointerException
   at org.activiti.engine.impl.jobexecutor.TimerExecuteNestedActivityJobHandler.execute(TimerExecuteNestedActivityJobHandler.java:39)
   at org.activiti.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:78)
   at org.activiti.engine.impl.persistence.entity.TimerEntity.execute(TimerEntity.java:62)
   at org.activiti.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:58)
   at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
   at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
   at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
   at org.activiti.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:36)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
   at java.lang.Thread.run(Unknown Source)
Exception in thread "pool-1-thread-6" java.lang.NullPointerException
   at org.activiti.engine.impl.jobexecutor.TimerExecuteNestedActivityJobHandler.execute(TimerExecuteNestedActivityJobHandler.java:39)
   at org.activiti.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:78)
   at org.activiti.engine.impl.persistence.entity.TimerEntity.execute(TimerEntity.java:62)
   at org.activiti.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:58)
   at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
   at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
   at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
   at org.activiti.engine.impl.jobexecutor.ExecuteJobsRunnable.run(ExecuteJobsRunnable.java:36)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
   at java.lang.Thread.run(Unknown Source)

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