Java Message Service 1.1
· This feature enables the configuration of resource adapters to access messaging systems using the Java Message Service API. This also includes the configuration JMS connection factories, queues, topics and activation specifications. Any JMS resource adapter that complies with the JCA 1.6 specification can be used.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window jms-1.1-23.0.0.8.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.