collection-utils-recyclerview-compat
· An assortment of modularized additives for collection-based layouts (RecyclerView compatibility components for ListView)
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 collection-utils-recyclerview-compat-4.0.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.