Celeritas
· Celeritas is a library written in Java 17 offering several tools to accelerate development
by delegating a number of recurring tasks to it.
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 celeritas-1.1.1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.