public static <T> T createStub(String interfaceName, Invoker<T> invoker) {
        // TODO DO not hack here
        if (!STUB_SUPPLIERS.containsKey(interfaceName)) {
            ReflectUtils.forName(stubClassName(interfaceName));
            if (!STUB_SUPPLIERS.containsKey(interfaceName)) {
                throw new IllegalStateException("Can not find any stub supplier for " + interfaceName);
            }
        }
        return (T) STUB_SUPPLIERS.get(interfaceName).apply(invoker);
    }
@Test
    void createStub() {
        Invoker<?> invoker = Mockito.mock(Invoker.class);
        try {
            StubSuppliers.createStub(serviceName + 1, invoker);
            fail();
        } catch (IllegalStateException e) {
            // pass
        }
    }