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diff --git a/gnu/testlet/java/util/Collections/nCopies.java b/gnu/testlet/java/util/Collections/nCopies.java
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+// Tags: JDK1.2
+
+// Copyright (C) 2004 David Gilbert <david.gilbert@object-refinery.com>
+
+// This file is part of Mauve.
+
+// Mauve is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// Mauve is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Mauve; see the file COPYING.  If not, write to
+// the Free Software Foundation, 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA.  */
+
+package gnu.testlet.java.util.Collections;
+
+import gnu.testlet.TestHarness;
+import gnu.testlet.Testlet;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectInput;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutput;
+import java.io.ObjectOutputStream;
+import java.util.Collections;
+import java.util.List;
+
+public class nCopies implements Testlet
+{
+
+  public void test(TestHarness harness) 
+  {
+    // try n = 0
+    List list = Collections.nCopies(0, "Y");
+    harness.check(list.isEmpty());
+
+    // try n > 0
+    list = Collections.nCopies(10, "X");
+    harness.check(list.size() == 10);
+    harness.check(list.get(0).equals("X"));
+    harness.check(list.get(9).equals("X"));
+    
+    // try n < 0
+    boolean pass = false;
+    try
+    {
+      list = Collections.nCopies(-1, "X");
+    }
+    catch (IllegalArgumentException e) 
+    {
+      pass = true;
+    }
+    harness.check(pass);
+    
+    // try null object
+    list = Collections.nCopies(3, null);
+    harness.check(list.size() == 3);
+    harness.check(list.get(0) == null);
+    harness.check(list.get(1) == null);
+    harness.check(list.get(2) == null);
+
+    // confirm list is unmodifiable
+    list = Collections.nCopies(10, "Y");
+    pass = false;
+    try
+    {
+      list.add("Z");
+    }
+    catch (UnsupportedOperationException e)
+    {
+      pass = true;
+    }
+    harness.check(pass);
+ 
+    // the method should return a Serializable list
+    testSerialization(harness);
+  }
+  
+  private void testSerialization(TestHarness harness) 
+  {
+    List list1 = Collections.nCopies(99, "X");
+    List list2 = null;
+
+    try {
+      ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+      ObjectOutput out = new ObjectOutputStream(buffer);
+      out.writeObject(list1);
+      out.close();
+
+      ObjectInput in = new ObjectInputStream(
+        new ByteArrayInputStream(buffer.toByteArray())
+      );
+      list2 = (List) in.readObject();
+      in.close();
+    }
+    catch (Exception e) {
+        harness.debug(e);
+    }
+    harness.check(list1.equals(list2));
+  }
+}