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Alex Rivera
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I have the following code that works for creating a Proxy instance for an interface type backed by an InvocationHandler implementation, however when I use a concrete class type it doesn't work and this is well known and documented in Proxy.newProxyInstance : // NOTE: does not work because SomeConcreteClass is not an interface type final ClassLoader myClassLoader = SomeConcreteClass.getClassLoader(); SomeConcreteClass myProxy = (SomeConcreteClass) Proxy.newProxyInstance(myClassLoader, new Class[] { SomeConcreteClass.class }, new InvocationHandler() { /* TODO */ }); However, if I recall correctly I have seen this use-case work in some mock frameworks where it is possible to mock a concrete class type e.g. EasyMock . Before checking up their source code can anyone indicate what needs to be done to proxy also concrete class types and not only interfaces?
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