Keycloak JavaScript Adapter (JAR)
· A build of the Keycloak JavaScript adapter that puts the compiled result in a JAR (for inclusion in the Keycloak server).
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 keycloak-js-adapter-jar-22.0.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.