packages/ExtShared/proguard.proguard

-keepparameternames
-keepattributes Exceptions,InnerClasses,Signature,Deprecated,
                SourceFile,LineNumberTable,EnclosingMethod,
                RuntimeVisibleAnnotations,RuntimeVisibleParameterAnnotations,
                RuntimeVisibleTypeAnnotations,AnnotationDefault

-keep public class * {
    public protected *;
}