Create new process with: start node -> Log -> end node
Set the Log work item handler in the project settings -> deployment descriptor page:
Name: Log
Identified: new org.jbpm.executor.impl.wih.AsyncWorkItemHandler(org.jbpm.executor.ExecutorServiceFactory.newExecutorService(),"org.jbpm.executor.commands.PrintOutCommand")
Resolver: mvel
Build and deploy project
Start new process instance and check job list for a new job of type: org.jbpm.executor.commands.PrintOutCommand