The JB MQ Layer
The tests associated with the jb mq layer (see Figure 1) monitor the messaging service of the JBoss application server.
The JMS API stands for Java Message Service Application Programming Interface, and is used by the JBoss server to send asynchronous business-quality messages to other applications. In the messaging world, messages are not sent directly to other applications. Instead, messages are sent to destinations. A destination is the object on the JBossMQ server that clients use to send and receive messages. There are two types of destination objects, namely, Queues and Topics. The JbossMQQueues test and the JbossMQTopics test mapped to the jb mq layer monitor each of the above-mentioned destination objects, respectively.