In this tutorial, you will be implementing a Java Message Service Publish/Subscribe system. The user interface components, a JavaServer Faces (JSF) page and managed bean have already been developed. Your task is to create a second managed bean to produce a message from the data in the form, and publish it to a JMS topic. You will then create message-driven beans (MDBs) that subscribe to the topic and use a message selector to filter the messages depending upon the value of a message property.