sandwich-retrofit-datasource
· A lightweight and pluggable sealed API library for modeling Retrofit responses and handling exceptions on Kotlin and Android.
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 sandwich-retrofit-datasource-2.0.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.