Jakarta JSON Binding 3.0
· The Jakarta API for JSON Binding (JSON-B) feature provides a standard for converting between Java objects and JavaScript Object Notation (JSON).
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 jsonb-3.0-23.0.0.8.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.