Android Priority Job Queue
· a Job Queue specifically written for Android to easily schedule jobs (tasks) that run in the background, improving UX and application stability.
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 jobqueue-3.0.3.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
