Here is my project setup.
https://community.jboss.org/servlet/JiveServlet/downloadImage/102-48556-1-20568/285-416/Screen+Shot+2013-04-05+at+8.53.15+PM.png
I trail and error to get this list, include them in your calsspath:
jbpm-bpmn2-5.4.0.Final.jar
jbpm-flow-5.4.0.Final.jar
jbpm-flow-builder-5.4.0.Final.jar
jbpm-human-task-core-5.4.0.Final.jar
jbpm-workitems-5.4.0.Final.jar
slf4j-log4j12-1.6.4.jar
hibernate-entitymanager-3.4.0.GA.jar
hibernate-core-3.3.2.GA.jar
hibernate-annotations-3.4.0.GA.jar
hibernate-commons-annotations-3.1.0.GA.jar
h2-1.3.161.jar
commons-collections-3.2.1.jar
mail-1.4.jar
The Human Task process flow:
https://community.jboss.org/servlet/JiveServlet/downloadImage/102-48556-1-20569/185-341/Screen+Shot+2013-04-05+at+9.06.15+PM.png
Hope it hepls those of you who want to kick starts on LocalTaskService. :D
