docking-frames-parent
· DockingFrames is an open source Java Swing docking framework, licenced under LGPL 2.1.
This is the same distribution as the original distribution (http://www.docking-frames.org/), only reinstalled in maven
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 docking-frames-parent-1.1.2p20b.fix-1.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.