public <T> T copy(T obj) {
    return (T) proxy.copy(serializerLocal.get(), obj);
  }
@Test
  public void testCopy() {
    BeanA beanA = BeanA.createBeanA(3);
    ForwardSerializer kryo = createSerializer("Kryo");
    assertEquals(kryo.copy(beanA), beanA);
    ForwardSerializer fury = createSerializer("Fury");
    assertEquals(fury.copy(beanA), beanA);
  }