non-variable type argument String in type pattern Seq[String] (the underlying of Seq[String]) is unchecked since it is eliminated by erasure

non-variable type argument String in type pattern Seq[String] (the underlying of Seq[String]) is unchecked since it is eliminated by erasure

match may not be exhaustive.

A try without a catch or finally is equivalent to putting its body in a block; no exceptions are handled.

imported `util` is permanently hidden by definition of package util in package spark

match may not be exhaustive.