反射+動態代理

@SuppressWarnings("unchecked") // Single-interface proxy creation guarded by parameter safety.public <T> T create(final Class<T> service) {Utils.validateServiceInterface(service);if (validateEagerly) {eagerlyValidateMethods(service);}return (T) Proxy.newProxyInstance(service.getClassLoader(), new Class<?>[] { service },new InvocationHandler() {private final Platform platform = Platform.get();private final Object[] emptyArgs = new Object[0];@Override public @Nullable Object invoke(Object proxy, Method method,@Nullable Object[] args) throws Throwable {// If the method is a method from Object then defer to normal invocation.if (method.getDeclaringClass() == Object.class) {return method.invoke(this, args);}if (platform.isDefaultMethod(method)) {return platform.invokeDefaultMethod(method, service, proxy, args);}return loadServiceMethod(method).invoke(args != null ? args : emptyArgs);}});}

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