classes.jar contains .dex bytecode (used when the compiled APK runs on device), while AndroidRuntime.jar contains .class bytecode (used when running code dynamically on the Companion).
Edit: corrected format descriptions.
classes.jar contains .dex bytecode (used when the compiled APK runs on device), while AndroidRuntime.jar contains .class bytecode (used when running code dynamically on the Companion).
Edit: corrected format descriptions.