src/java.base/share/classes/java/lang/System.java

*** 2163,2170 ****
--- 2163,2183 ----
                  return layer.layers();
              }
              public Stream<ModuleLayer> layers(ClassLoader loader) {
                  return ModuleLayer.layers(loader);
              }
+             public Class<?> loadValueTypeClass(Module module, ClassLoader cl, String name) {
+                 try {
+                     // VM support to define DVT
+                     Class<?> c = Class.forName0(name, false, cl, Object.class);
+                     // catch if the given name is not the name of a DVT class
+                     if (!c.isValueClass()) {
+                         throw new InternalError(c.getName() + " not a value type");
+                     }
+                     return c;
+                 } catch (ClassNotFoundException e) {
+                     throw new InternalError(e);
+                 }
+             }
          });
      }
  }