--- old/src/hotspot/share/opto/runtime.cpp	2018-04-20 00:47:11.000000000 +0100
+++ new/src/hotspot/share/opto/runtime.cpp	2018-04-20 00:47:11.000000000 +0100
@@ -723,6 +723,27 @@
   return TypeFunc::make(domain, range);
 }
 
+const TypeFunc* OptoRuntime::void_void_Type() {
+   // create input type (domain)
+   const Type **fields = TypeTuple::fields(0);
+   const TypeTuple *domain = TypeTuple::make(TypeFunc::Parms+0, fields);
+ 
+   // create result type (range)
+   fields = TypeTuple::fields(0);
+   const TypeTuple *range = TypeTuple::make(TypeFunc::Parms+0, fields);
+   return TypeFunc::make(domain, range);
+ }
+ 
+ const TypeFunc* OptoRuntime::continuation_doYield_Type() {
+   const Type**fields = TypeTuple::fields(1);
+   fields[TypeFunc::Parms+0] = TypeInstPtr::NOTNULL;  // Object to be Locked
+   const TypeTuple *args = TypeTuple::make(TypeFunc::Parms+1, fields);
+ 
+   fields = TypeTuple::fields(0);
+   const TypeTuple *result = TypeTuple::make(TypeFunc::Parms+0, fields);
+   return TypeFunc::make(args, result);
+ }
+
 // arraycopy stub variations:
 enum ArrayCopyType {
   ac_fast,                      // void(ptr, ptr, size_t)