--- old/src/java.base/share/classes/jdk/internal/misc/JavaLangAccess.java	2017-06-20 14:47:35.000000000 -0700
+++ new/src/java.base/share/classes/jdk/internal/misc/JavaLangAccess.java	2017-06-20 14:47:35.000000000 -0700
@@ -248,4 +248,9 @@
      * given class loader.
      */
     Stream<ModuleLayer> layers(ClassLoader loader);
+
+    /**
+     * Loads a derived ValueType class
+     */
+    Class<?> loadValueTypeClass(Module module, ClassLoader loader, String name);
 }