Created attachment 17103 [details]
Compile the attached project.
Build without error
error CS0308: The non-generic type `Com.Google.Android.Exoplayer.Drm.IExoMediaDrmOnEventListener' cannot be used with the type arguments
The attachment also contains the java source to create the jar file.
Fix created at https://github.com/xamarin/java.interop/pull/100
Sorry, forgot to tell you that it was merged in timely manner.