I am using | <arg><object expr="#{attendeeId}"/></arg> | attendeeId is process variable of type String. | Caused by: java.lang.Exception: couldn't create argument 0: script evaluation er | ror: javax.el.PropertyNotFoundException: Cannot find property attendeeId | at org.jbpm.pvm.internal.wire.descriptor.ObjectDescriptor.getArgs(Object | Descriptor.java:348) | at org.jbpm.jpdl.internal.activity.JavaActivity.perform(JavaActivity.jav | a:79) | Is the expression correct? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4263395#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...