--- jsr166/src/test/tck/AbstractQueuedSynchronizerTest.java	2004/01/07 20:49:53	1.10
+++ jsr166/src/test/tck/AbstractQueuedSynchronizerTest.java	2004/01/08 01:29:46	1.11
@@ -155,6 +155,18 @@ public class AbstractQueuedSynchronizerT
     } 
 
     /**
+     * isQueued(null) throws NPE
+     */
+    public void testIsQueuedNPE() { 
+	final Mutex lock = new Mutex();
+        try {
+            lock.isQueued(null);
+            shouldThrow();
+        } catch (NullPointerException success) {
+        }
+    }
+
+    /**
      * isQueued reports whether a thread is queued.
      */
     public void testIsQueued() {