src/java.base/share/classes/jdk/internal/misc/JavaLangAccess.java

@@ -246,6 +246,11 @@
     /**
      * Returns a stream of the layers that have modules defined to the
      * given class loader.
      */
     Stream<ModuleLayer> layers(ClassLoader loader);
+
+    /**
+     * Loads a derived ValueType class
+     */
+    Class<?> loadValueTypeClass(Module module, ClassLoader loader, String name);
 }