test/java/util/Collection/MOAT.java

rev 7932 : 8021591: Additional explicit null checks
Reviewed-by: psandoz, martin, alanb

@@ -398,12 +398,10 @@
 
     //----------------------------------------------------------------
     // If add(null) succeeds, contains(null) & remove(null) should succeed
     //----------------------------------------------------------------
     private static void testNullElement(Collection<Integer> c) {
-        // !!!! 5018849: (coll) TreeSet.contains(null) does not agree with Javadoc
-        if (c instanceof TreeSet) return;
 
         try {
             check(c.add(null));
             if (c.size() == 1)
                 equal(c.toString(), "[null]");