testing-kotlin
· Utility library used to facilitate instrumentation testing through Espresso and UiAutomator on foldable devices, and with specific helpers to change app-display configuration on Surface Duo devices
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 testing-kotlin-1.0.0-alpha4.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.