diff --git a/src/share/vm/opto/type.cpp b/src/share/vm/opto/type.cpp
index 28545c6396d95eee72adaf94ac8b75dea7d35d9c..72d52f775e132daeed14d10cdb716e68c82bae70 100644
--- a/src/share/vm/opto/type.cpp
+++ b/src/share/vm/opto/type.cpp
@@ -3781,7 +3781,7 @@ ciKlass* TypeAryPtr::klass() const {
   // Oops, need to compute _klass and cache it
   ciKlass* k_ary = compute_klass();
 
-  if( this != TypeAryPtr::OOPS ) {
+  if( this != TypeAryPtr::OOPS && this->dual() != TypeAryPtr::OOPS ) {
     // The _klass field acts as a cache of the underlying
     // ciKlass for this array type.  In order to set the field,
     // we need to cast away const-ness.