在我们的一种实现中，我们将hystrix用作断路器。 我们面临的问题是后备方法代码被复制，这违反了DRY的原理。除此之外，我们还有其他选择吗？

代码：后备方法如下所示-

public PaymentAuthVerifyResponse verifyChargesPreAuthFallback(String txnId) {
    PaymentAuthVerifyResponse response = new PaymentAuthVerifyResponse();
    return response;
}

public PaymentAuthVerifyResponse cancelPreAuthFallback(String txnId) {
    PaymentAuthVerifyResponse response = new PaymentAuthVerifyResponse();
    return response;
}

public PaymentAuthResponse chargePreAuthRequestFallback(PaymentAuthRequest chargeParams) {
    PaymentAuthResponse response = new PaymentAuthResponse();
    return response;
}