--- old/src/share/vm/classfile/classFileParser.cpp	2017-07-04 18:39:47.173152373 +0200
+++ new/src/share/vm/classfile/classFileParser.cpp	2017-07-04 18:39:47.093152741 +0200
@@ -5638,6 +5638,7 @@
   if (is_value_type()) {
     ValueKlass* vk = ValueKlass::cast(ik);
     vk->set_if_bufferable();
+    vk->initialize_calling_convention();
   }
 
   // Valhalla shady value type conversion