Simba
· Simba aims to provide easy-to-use and flexible distributed lock services and supports multiple storage implementations: relational databases, Redis, and Zookeeper.
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 simba-bom-2.0.6.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.