diozero - Bill of Materials
· Java Device I/O library that is portable across Single Board Computers (including Raspberry Pi, BeagleBone Black, Odroid C2, CHIP, ASUS TinkerBoard, Allwinner H3 / H5 / H6)
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 diozero-bom-1.3.5.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.