在java中如何获取或初始化scala.collection.immutable.Map?

java调用kafka API时需要一个一个scala.collection.immutable.Map参数，但不知道如何初始化或通过其他API获取

java.util.Map javaMap = new java.util.HashMap();
scala.collection.immutable.Map scalaImmutableMap = scala.collection.JavaConverters.mapAsScalaMapConverter(javaMap).asScala().toMap(scala.Predef.>conforms());