annot-nonconst.scala:1: warning: Implementation restriction: subclassing Classfile does not
make your annotation visible at runtime.  If that is what
you want, you must write the annotation class in Java.
class Length(value: Int) extends annotation.ClassfileAnnotation
      ^
annot-nonconst.scala:2: warning: Implementation restriction: subclassing Classfile does not
make your annotation visible at runtime.  If that is what
you want, you must write the annotation class in Java.
class Ann2(value: String) extends annotation.ClassfileAnnotation
      ^
annot-nonconst.scala:6: error: annotation argument needs to be a constant; found: Test.this.n
  @Length(n) def foo = "foo"
          ^
annot-nonconst.scala:7: error: annotation argument cannot be null
  @Ann2(null) def bar = "bar"
        ^
two warnings found
two errors found