public static int gcd(int a, int b) {
        int temp;
        while (b != 0) {
            temp = a % b;
            a = b;
            b = temp;
            LOGGER.info("gcd(" + a + ", " + b + ")=");
        }
        LOGGER.info(String.valueOf(a));
        return a;
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
core-impl/client/src/test/java/com/alipay/sofa/rpc/client/lb/RoundRobinLoadBalancerTest.java