This illustration depicts the configuration elements hierarchy. The jms-server directory is shown as the root directory, and it has the following subdirectories: queue, topic, connection-factory, queue-connection-factory, topic-connection-factory, xa-connection-factory, xa-queue-connection-factory, xa-topic-connection-factory, and log. In turn, the queue and topic directories each contain a description subdirectory, and the log directory contains the odl and file subdirectories.