in jbpm 3.1.4 , can use follow code to send a message:

import org.jbpm.msg.Message;
import org.jbpm.msg.db.DbMessageService;
import org.jbpm.msg.db.TextMessage;
....


Message msg=new TextMessage("some messages");
msg.setDestination(issueUser);
msg.setToken(arg0.getProcessInstance().getRootToken());
DbMessageService msgService=new DbMessageService();
msgService.send(msg);
msgService.close();

and use org.jbpm.db.MessagingSession to get the message.

please give me a tip how to do this in jbpm 3.2.2.

thanks.