Java側で定義したパラメータ型の可変長引数を持つメソッドは、Scala側でオーバーライドできない

AC.java

public abstract class AC<T> {
	protected abstract void cannot_override(T... xs);
}

C.scala

class C extends AC[String] {
  override protected def cannot_override(args: String*) {
    for (str <- args) println(str)
  }
}

object Test extends App {
  new C().cannot_override("Hello", "world")
}

console

> javac -version
javac 1.6.0_31
> scalac -version
Scala compiler version 2.9.2 -- Copyright 2002-2011, LAMP/EPFL
> scala -version
Scala code runner version 2.9.2 -- Copyright 2002-2011, LAMP/EPFL
> javac AC.java
> scalac C.scala
> scala Test
java.lang.AbstractMethodError: C.cannot_override([Ljava/lang/Object;)V
        at Test$delayedInit$body.apply(C.scala:8)
        at scala.Function0$class.apply$mcV$sp(Function0.scala:34)
        at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
        at scala.App$$anonfun$main$1.apply(App.scala:60)
        at scala.App$$anonfun$main$1.apply(App.scala:60)
        at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
        at scala.collection.immutable.List.foreach(List.scala:76)
        at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:30)
        at scala.App$class.main(App.scala:60)
        at Test$.main(C.scala:7)
        at Test.main(C.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at scala.tools.nsc.util.ScalaClassLoader$$anonfun$run$1.apply(ScalaClassLoader.scala:78)
        at scala.tools.nsc.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:24)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.asContext(ScalaClassLoader.scala:88)
        at scala.tools.nsc.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:78)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)
        at scala.tools.nsc.ObjectRunner$.run(ObjectRunner.scala:33)
        at scala.tools.nsc.ObjectRunner$.runAndCatch(ObjectRunner.scala:40)
        at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:56)
        at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:80)
        at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:89)
        at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

JavaとScalaではprotectedの可視性が違うのですね・・・迂闊でした。