Hello ​with tapestry 5.3.4 and java 7 with use of org.apache.tapestry5.ioc.services.ClassFactory
private Class<?> createProxyClass(ServiceResources resources) { Class<?> serviceInterface = resources.getServiceInterface(); ClassFab cf = classFactory.newClass(serviceInterface); // add field cf.addField("_creator", Modifier.PRIVATE | Modifier.FINAL, SomeClass.class); // Constructor takes a ServiceCreator cf.addConstructor(new Class[] { SomeClass.class }, null, "_creator = $1;"); // add method String body = format("return (%s) _creator.get();", serviceInterface.getName()); MethodSignature sig = new MethodSignature(serviceInterface, SCOPE_METHOD_NAME, null, null); cf.addMethod(Modifier.PRIVATE, sig, body); String toString = format("<Scoped Proxy for scope(%s): %s(%s)>", scope, resources.getServiceId(), serviceInterface.getName()); cf.proxyMethodsToDelegate(serviceInterface, SCOPE_METHOD_NAME + "()", toString); return cf.createClass(); } with tapestry 5.4-beta3 this class has been removed (it was depricated) I played around a little bit to find related implementation in new replaced class org.apache.tapestry5.ioc.services.PlasticProxyFactory couldn't find it offhand, how to achieve same thing with tapestry 5.4 ? Thanks! Jigar