Convert from scala.collection.Seq to java.util.List in Java code

Question

I\'m calling a Scala method, from Java. And I need to make the conversion from Seq to List.

I can\'t modified the signature of the Scala method, so I can\'t used the

Answer 1

Since 2.12 this is the recommended way:

public static  java.util.List convert(scala.collection.Seq seq) {
    return scala.collection.JavaConverters.seqAsJavaList(seq);
}

All other methods a @deprecated("use JavaConverters or consider ToJavaImplicits", since="2.12.0")