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copied!<p>I've just tried to reproduce your error using Scala 2.8.0 and can't. Here's my code</p> <pre><code>// Example.java public class Example { public static void test(String... args) { System.out.println(args.getClass()); } } // In test.scala object Test { def main(args: Array[String]) { test("1", "2", "3") } def test(strs: String*) = { println(strs.getClass) Example.test(strs:_*) } } </code></pre> <p>I get the following output:</p> <pre><code>class scala.collection.mutable.WrappedArray$ofRef class [Ljava.lang.String; </code></pre> <p>So it looks like the compiler is inserting the correct conversion to convert the <code>WrappedArray.ofRef</code> to a <code>String[]</code>.</p> <p><strong>Edit</strong></p> <p>Just tried running your example. It looks like some interaction of super-accessors in traits with converting Scala varargs to Java varargs. If you change the trait to a class it works.</p> <p>From the decompiled output of <code>ScalaServletModule$class</code>, it looks like it doesn't do the necessary conversion from <code>String*</code> to <code>String[]</code> when calling the super accessor (line 19).</p> <pre><code>public static void test(ScalaServletModule, java.lang.String, scala.collection.Seq); Code: 0: getstatic #11; //Field scala/Predef$.MODULE$:Lscala/Predef$; 3: aload_2 4: invokevirtual #18; //Method java/lang/Object.getClass:()Ljava/lang/Class; 7: invokevirtual #22; //Method scala/Predef$.println:(Ljava/lang/Object;)V 10: getstatic #11; //Field scala/Predef$.MODULE$:Lscala/Predef$; 13: aload_0 14: aload_1 15: aload_2 16: checkcast #24; //class "[Ljava/lang/String;" 19: invokeinterface #30, 3; //InterfaceMethod ScalaServletModule.ScalaServletModule$$super$filter:(Ljava/lang/String;[Ljava/lang/String;)Lcom/google/inject/servlet/ServletModule$FilterKeyBindingBuilder; 24: invokevirtual #22; //Method scala/Predef$.println:(Ljava/lang/Object;)V 27: return </code></pre>

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