diff --git a/src/hotspot/share/code/nmethod.cpp b/src/hotspot/share/code/nmethod.cpp
index 2719946..8636857 100644
--- a/src/hotspot/share/code/nmethod.cpp
+++ b/src/hotspot/share/code/nmethod.cpp
@@ -1624,7 +1624,8 @@ void nmethod::do_unloading(bool unloading_occurred) {
     }
 #endif
 
-    unload_nmethod_caches(unloading_occurred);
+    guarantee(unload_nmethod_caches(unloading_occurred),
+              "Should not need tranisition stubs");
   }
 }