diff --git a/src/testcases/org/apache/tools/ant/IntrospectionHelperTest.java b/src/testcases/org/apache/tools/ant/IntrospectionHelperTest.java
index 2a1f65270..6041141fc 100644
--- a/src/testcases/org/apache/tools/ant/IntrospectionHelperTest.java
+++ b/src/testcases/org/apache/tools/ant/IntrospectionHelperTest.java
@@ -594,16 +594,25 @@ public class IntrospectionHelperTest extends TestCase {
 
     public void testGetExtensionPoints() {
         List extensions = ih.getExtensionPoints();
-        assertEquals("extension count", 3, extensions.size());
-
-        assertExtMethod(extensions.get(0), "add", Number.class,
-                        new Integer(2), new Integer(3));
+        final int adders = 2;
+        assertEquals("extension count", adders, extensions.size());
+
+        // this original test assumed something about the order of
+        // add(Number) and addConfigured(Map) returned by reflection.
+        // Unfortunately the assumption doesn't hold for all VMs
+        // (failed on MacOS X using JDK 1.4.2_05) and the possible
+        // combinatorics are too hard to check.  We really only want
+        // to ensure that the more derived Hashtable can be found
+        // before Map.
+//        assertExtMethod(extensions.get(0), "add", Number.class,
+//                        new Integer(2), new Integer(3));
 
         // addConfigured(Hashtable) should come before addConfigured(Map)
-        assertExtMethod(extensions.get(1), "addConfigured", Hashtable.class,
+        assertExtMethod(extensions.get(adders - 2),
+                        "addConfigured", Hashtable.class,
                         makeTable("key", "value"), makeTable("1", "2"));
 
-        assertExtMethod(extensions.get(2), "addConfigured", Map.class,
+        assertExtMethod(extensions.get(adders - 1), "addConfigured", Map.class,
                         new HashMap(), makeTable("1", "2"));
     }
 
@@ -644,10 +653,11 @@ public class IntrospectionHelperTest extends TestCase {
         return null;
     }
 
-    public void add(Number n) {
-        // Valid extension point
-        assertEquals(2, n.intValue());
-    }
+    // see comments in testGetExtensionPoints
+//    public void add(Number n) {
+//        // Valid extension point
+//        assertEquals(2, n.intValue());
+//    }
 
     public void add(List l, int i) {
         // INVALID extension point