What is the best practice for setting dynamic duedates on timers in jbpm4? I have a use case were I need to signal a transition at a specific date/time depending on a variable(java.util.Date) in the business process. In the example below start is a Date variable on the process and this fails due to a classcast exception. This way of setting a dynamic duedate seems to be supported in jbpm 3.x. (e.g. http://docs.jboss.org/jbpm/v3.2/userguide/html/businesscalendar.html). | <state name="waiting"> | <transition name="to out" to="out"> | <timer duedate="#{start} - 1 days" /> | </transition> | .. | </state> | Part of stacktrace: | ERROR [ExecuteJobCmd] exception while executing 'ExecuteActivityMessage[11]' | | java.lang.ClassCastException: java.util.Date cannot be cast to java.lang.String | at org.jbpm.pvm.internal.job.TimerImpl.setDueDateDescription(TimerImpl.java:76) | at org.jbpm.pvm.internal.model.ScopeInstanceImpl.createTimer(ScopeInstanceImpl.java:303) | at org.jbpm.pvm.internal.model.ScopeInstanceImpl.initializeTimers(ScopeInstanceImpl.java:323) | at org.jbpm.pvm.internal.model.ExecutionImpl.createScope(ExecutionImpl.java:262) A quick peak in the jbpm source code seems to reveal that the wanted behavior is not possible, hence the starting question. Do i need to create and persist the timer manually? (e.g. node enter event listener) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4270032#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...