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diff --git a/src/library/scala/collection/jcl/IterableWrapper.scala b/src/library/scala/collection/jcl/IterableWrapper.scala
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+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2006-2007, LAMP/EPFL             **
+**  __\ \/ /__/ __ |/ /__/ __ |                                         **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+\*                                                                      */
+
+// $Id$
+
+package scala.collection.jcl;
+
+/** A wrapper around a Java collection that only supports remove mutations.
+ *
+ *  @author Sean McDirmid
+ */
+trait IterableWrapper[A] extends MutableIterable[A] {
+  def underlying: java.util.Collection[A];
+  override def remove(a: A) = underlying.remove(a);
+  override def removeAll(that: Iterable[A]) = that match {
+    case that: IterableWrapper[_] => underlying.removeAll(that.underlying);
+    case _ => super.removeAll(that);
+  }
+  override def retainAll(that : Iterable[A]) = that match {
+    case that : IterableWrapper[_] => underlying.retainAll(that.underlying);
+    case _ => super.retainAll(that);
+  }
+  override def size = underlying.size;
+  override def isEmpty = underlying.isEmpty;
+  override def clear = underlying.clear;
+  override def elements : MutableIterator[A] = new MutableIterator.Wrapper[A](underlying.iterator);
+}