eBus - enterprise event bus
· A Java middleware API supporting broker-less,
type+topic-based publish/subscribe and request/reply
messaging for both intra- and inter-application,
object-level communication.
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 ebus-6.6.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.