method args in trait Apply is deprecated: 4.6.0

method args in trait Apply is deprecated: 4.6.0

Modifier final is redundant for this definition

Suspicious top-level unqualified call to synchronized

Unreachable case except for null (if this is intentional, consider writing case null => instead).

match may not be exhaustive.

match may not be exhaustive.

Unreachable case except for null (if this is intentional, consider writing case null => instead).

the type test for scala.collection.LinearSeq[T] cannot be checked at runtime because its type arguments can't be determined from scala.collection.immutable.Iterable[T]