--- a/hotspot/src/share/vm/ci/ciInstanceKlass.cpp	Thu Jan 27 16:11:27 2011 -0800
+++ b/hotspot/src/share/vm/ci/ciInstanceKlass.cpp	Mon Jan 31 17:48:21 2011 -0800
@@ -46,6 +46,7 @@
   ciKlass(h_k), _non_static_fields(NULL)
 {
   assert(get_Klass()->oop_is_instance(), "wrong type");
+  assert(get_instanceKlass()->is_loaded(), "must be at least loaded");
   instanceKlass* ik = get_instanceKlass();
 
   AccessFlags access_flags = ik->access_flags();