AboutLibraries Library
· AboutLibraries automatically detects all dependencies of a project and collects their information including the license. Optionally visualising it via the provided ui components.
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 aboutlibraries-core-android-debug-10.9.0-b01.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.