diff -r 3d539f4123b8 -r 3ac205ad1f05 src/share/classes/com/sun/tools/javac/comp/Infer.java
--- a/src/share/classes/com/sun/tools/javac/comp/Infer.java	Tue Jun 16 10:45:42 2009 +0100
+++ b/src/share/classes/com/sun/tools/javac/comp/Infer.java	Tue Jun 16 10:46:16 2009 +0100
@@ -158,8 +158,7 @@
                 that.inst = types.glb(that.hibounds);
         }
         if (that.inst == null ||
-            that.inst.isErroneous() ||
-            !types.isSubtypeUnchecked(that.inst, that.hibounds, warn))
+            that.inst.isErroneous())
             throw ambiguousNoInstanceException
                 .setMessage("no.unique.maximal.instance.exists",
                             that.qtype, that.hibounds);