ProxyFactory will not invoke MethodHandler on method declared in parent classes. -------------------------------------------------------------------------------- Key: JASSIST-244 URL: https://issues.jboss.org/browse/JASSIST-244 Project: Javassist Issue Type: Bug Affects Versions: 3.18.0-GA, 3.19.0-GA Environment: Windows 7, Java 1.7 and 1.8 Reporter: Elis Edlund Assignee: Shigeru Chiba Priority: Blocker Fix For: 3.21.0-GA Attachments: IssueMethodsInParentShouldCallTheMethodHandler.java ProxyFactory factory = new ProxyFactory(); factory.setSuperclass(Extended.class); Extended enchantedObject = (Extended) factory.create(null, null, METHOD_HANDLER); Does not work as intended with version newer than 3.17.0-GA invoking methods on the created object will go through the METHOD_HANDLER long as the method does not belong to a parent class of 'Extended'. if the method is comes from a parent class of 'Extended' the METHOD_HANDLER will not be used at all (which it was in previous versions)