TaskMgmtDefinition taskMgmtDefinition = executionContext.getProcessDefinition().getTaskMgmtDefinition();
TaskMgmtInstance taskMgmtInstance = executionContext.getTaskMgmtInstance();
ContextInstance contextInstance = executionContext.getContextInstance();
Swimlane shipperSwimlane = taskMgmtDefinition.getSwimlane("shipper");
SwimlaneInstance shipperSwimlaneInstance = taskMgmtInstance.getInitializedSwimlaneInstance(executionContext, shipperSwimlane);
String actorId = shipperSwimlaneInstance.getActorId();
String displayMsg = replace(msg, "${"+swimlaneName+"}", actorId);
displayMsg = replace(displayMsg, "${item}", (String)contextInstance.getVariable("item"));
displayMsg = replace(displayMsg, "${address}", (String)contextInstance.getVariable("address"));