--- old/src/hotspot/cpu/x86/interpreterRT_x86_64.cpp	2019-03-11 14:24:55.382356134 +0100
+++ new/src/hotspot/cpu/x86/interpreterRT_x86_64.cpp	2019-03-11 14:24:55.182356137 +0100
@@ -291,6 +291,10 @@
 #endif
 }
 
+void InterpreterRuntime::SignatureHandlerGenerator::pass_valuetype() {
+  pass_object();
+}
+
 void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) {
   // generate code to handle arguments
   iterate(fingerprint);
@@ -356,6 +360,11 @@
     }
   }
 
+  virtual void pass_valuetype() {
+    // values are handled with oops, like objects
+    pass_object();
+  }
+
   virtual void pass_float()
   {
     jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
@@ -451,6 +460,11 @@
     }
   }
 
+  virtual void pass_valuetype() {
+    // values are handled with oops, like objects
+    pass_object();
+  }
+
   virtual void pass_float()
   {
     jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0));