jbpm-installer/jboss-5.1.0.GA/server/default/deploy/jbpm-gwt-console-server.war/WEB-INF/classes/META-INF/CustomWorkItemHandlers.conf :
[
"Log": new org.jbpm.process.instance.impl.demo.SystemOutWorkItemHandler(),
"Email": new org.jbpm.process.workitem.email.EmailWorkItemHandler("MySMTPHost","MySMTPPort","MyUsername","MyPassword");]