Accessing hidden method Ljava/security/spec/ECParameterSpec;->setCurveName(Ljava/lang/String;)V (greylist, reflection, allowed) 16:09:29.013 W java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType 16:09:29.014 W at retrofit2.HttpServiceMethod.parseAnnotations(SourceFile:46) 16:09:29.014 W at retrofit2.ServiceMethod.parseAnnotations(SourceFile:39) 16:09:29.014 W at retrofit2.Retrofit.loadServiceMethod(SourceFile:202) 16:09:29.014 W at retrofit2.Retrofit$1.invoke(SourceFile:160) 16:09:29.014 W at java.lang.reflect.Proxy.invoke(Proxy.java:1006) 16:09:29.014 W at $Proxy6.generateAnonymousAuthTokenAsyn(Unknown Source)

Has nothing to do with kotlin

@Gaurav Tyagi not sure if this helps you, but I had an issue with the release version of my app which uses Minify: https://developer.android.com/studio/build/shrink-code

it fixed after adding below line.

-keep class kotlin.coroutines.Continuation

Great to hear!

thanks all