--- a/hotspot/src/share/vm/classfile/javaClasses.cpp	Mon Oct 17 11:00:41 2011 -0700
+++ b/hotspot/src/share/vm/classfile/javaClasses.cpp	Mon Oct 17 21:38:29 2011 -0700
@@ -503,12 +503,8 @@
   if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) {
     // Allocate mirror (java.lang.Class instance)
     Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0);
-    // Setup indirections
-    mirror->obj_field_put(_klass_offset,  k());
-    k->set_java_mirror(mirror());
 
     instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass());
-    java_lang_Class::set_oop_size(mirror(), mk->instance_size(k));
     java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror()));
 
     // It might also have a component mirror.  This mirror must already exist.
@@ -571,9 +567,10 @@
     assert(aklass != NULL, "correct bootstrap");
     set_array_klass(java_class, aklass);
   }
+#ifdef ASSERT
   instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass());
-  java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL)));
-  java_lang_Class::set_static_oop_field_count(java_class, 0);
+  assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation");
+#endif
   return java_class;
 }
 
@@ -587,6 +584,12 @@
 }
 
 
+void java_lang_Class::set_klass(oop java_class, klassOop klass) {
+  assert(java_lang_Class::is_instance(java_class), "must be a Class object");
+  java_class->obj_field_put(_klass_offset, klass);
+}
+
+
 void java_lang_Class::print_signature(oop java_class, outputStream* st) {
   assert(java_lang_Class::is_instance(java_class), "must be a Class object");
   Symbol* name = NULL;