diff -r 30369db7f5d2 -r 1e026f8da827 src/share/vm/opto/parse2.cpp
--- a/src/share/vm/opto/parse2.cpp	Mon Jun 23 18:21:18 2008 -0700
+++ b/src/share/vm/opto/parse2.cpp	Tue Jun 24 10:43:29 2008 -0700
@@ -67,12 +67,9 @@
   const Type*       elemtype = arytype->elem();
 
   if (UseUniqueSubclasses && result2 != NULL) {
-    const Type* el = elemtype;
-    if (elemtype->isa_narrowoop()) {
-      el = elemtype->is_narrowoop()->make_oopptr();
-    }
-    const TypeInstPtr* toop = el->isa_instptr();
-    if (toop) {
+    const Type* el = elemtype->make_ptr();
+    if (el && el->isa_instptr()) {
+      const TypeInstPtr* toop = el->is_instptr();
       if (toop->klass()->as_instance_klass()->unique_concrete_subklass()) {
         // If we load from "AbstractClass[]" we must see "ConcreteSubClass".
         const Type* subklass = Type::get_const_type(toop->klass());