bluecove-parent
· BlueCove is JSR-82 J2SE implementation that currently interfaces with the Linux BlueZ, Mac OS X, WIDCOMM, BlueSoleil and Microsoft Bluetooth stack
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 bluecove-parent-2.1.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.