--- jsr166/src/test/tck/JSR166TestCase.java	2015/01/15 18:58:07	1.125
+++ jsr166/src/test/tck/JSR166TestCase.java	2015/01/17 22:55:06	1.126
@@ -27,6 +27,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Date;
 import java.util.Enumeration;
+import java.util.Iterator;
 import java.util.List;
 import java.util.NoSuchElementException;
 import java.util.PropertyPermission;
@@ -1468,4 +1469,12 @@ public class JSR166TestCase extends Test
                 shouldThrow(expectedExceptionClass.getName());
         }
     }
+
+    public void assertIteratorExhausted(Iterator<?> it) {
+        try {
+            it.next();
+            shouldThrow();
+        } catch (NoSuchElementException success) {}
+        assertFalse(it.hasNext());
+    }        
 }