public virtual ProcessDefinitionBuilder startTransition(string destinationActivityId, string transitionId) { if (string.ReferenceEquals(destinationActivityId, null)) { throw new PvmException("destinationActivityId is null"); } ActivityImpl activity = Activity; transition_Renamed = activity.createOutgoingTransition(transitionId); unresolvedTransitions.Add(new object[] { transition_Renamed, destinationActivityId }); processElement = transition_Renamed; return(this); }