NonNullableError
case
class NonNullableError[A](nonNullable: Rbe[A], rbe: Rbe[A], bag: Bag[A], open: Boolean, extraSymbols: Map[A, Int])(implicit evidence$2: Show[A]) extends RbeError
class RbeError
trait Product
trait Equals
trait NoStackTrace
class Exception
class Throwable
trait Serializable
class Object
trait Matchable
class Any