[jboss-user] [JBoss jBPM] - Problem instantiating a delegate class

Hi, I have a small processdefinition which calls a ActionHandler when entering a transition: | <?xml version="1.0" encoding="UTF-8"?> | | <process-definition xmlns="urn:jbpm.org:jpdl-3.2" name="TransportProcessDef"> | <start-state name="start"> | <transition name="" to="state1"> | <action class="com.xxx.man.MyAction" name="Doing some complex things"></action> | </transition> | </start-state> | <state name="state1"> | <transition name="toEnd1" to="end1"></transition> | </state> | <end-state name="end1"></end-state> | </process-definition> | When I run the process, I get the following exception: anonymous wrote : ERROR [org.jbpm.instantiation.Delegation] couldn't instantiate delegation class 'com.ptvag.jabba.tourmgmt.MyAction' | java.lang.NullPointerException... I don't understand this behaviour, because I can instantiate an object of the Class MyAction with a Classloader without any problem: | Class clazz = c.loadClass("com.xxx.man.MyAction"); | MyAction a = (MyAction) clazz.newInstance(); | a.execute(null); | Can anybody help me with this problem? Thanks in advance! Regards, TMK View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4128438#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...