topic Re: Error when claiming a user task in Alfresco Archive

Error when claiming a user task

ganeshr — Tue, 26 Feb 2013 12:30:42 GMT

Hi, I'm getting following error when claiming a task, Caused by: org.activiti.engine.ActivitiException: Error while evalutaing expression at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:59) at org.activiti.engine.impl.bpmn.listener.ExpressionTaskListe

Re: Error when claiming a user task

jbarrez — Thu, 28 Feb 2013 16:07:54 GMT

Is there a way where I can acheive by placing the jar in tomcat lib folder? So that I reduce the overhead of placing the jar in activiti-explorer each time a new version is released.

Generally, this is regarded as not a very good practice. The reason is that it can mess up classloaders. I don't know why you see the issue exactly, but it has to do something with those classloaders….

Re: Error when claiming a user task

ganeshr — Fri, 01 Mar 2013 12:42:24 GMT

The problem is if I place the jar in activiti-explorer/rest lib folder, then everytime if I want to upgrade to new activiti version, need to take care of placing again business process specific jars in lib folder. Instead I want to place the business process specific jar in common place. So that I need not to worry about whether admin team has taken care of this specific step of placing jars in activiti apps when upgrade happens. any suggestions?

Re: Error when claiming a user task

frederikherema1 — Mon, 04 Mar 2013 14:36:30 GMT

I'm afraid there is no other way than patching the war with your logic or removing the activiti-*.jar's from the WAR and moving them to the shared-lib folder instead.