DellRoad Stuff
· DellRoad Stuff is a dumping ground for various useful Java classes that have evolved over time from repeated use in multiple projects.
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 dellroad-stuff-2.5.10.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.