False positive-ish: no way to suppress warnings where annotations cannot be used

[marconilanna]

I'm using contrib.OldTime, however the issue applies to other rules as well.

I need to interop with a legacy Java API. While I can @SuppressWarnings the usage site, there is no way to annotate the import clause. Disabling the check for the whole project is not desirable. Other static analysis tools can use comments instead of annotations, which would be a solution to this problem.

import java.util.Date // wartremover error here. how to whitelist it?

@SuppressWarnings(Array(Warts.OldTime))
class X {
  def y = legacyJavaApi.z(new Date)
}