I'm using JBoss 4.0.4. The JMS spec says that the message driven bean can get the username of the user that dropped the message on the queue by getting the message property value 'JMSXUserID". I am doing the following in my client: | System.setProperty(Context.SECURITY_AUTHENTICATION, "simple"); | System.setProperty(Context.SECURITY_PRINCIPAL, "test"); | System.setProperty(Context.SECURITY_CREDENTIALS, "test"); | Hashtable ht = new Hashtable(System.getProperties()); | ConnectionFactory cf = (new InitialContext(ht)).lookup(JNDI_FACTORY_NAME); | ... | producer.send(message); | ... | In my MDB: | String username = message.getStringProperty("JMSXUserID"); | What am i missing? Thanks! Mike View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3996740#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...