stack overflow

 private static int sum = 0;

    public  int sumNum(int next) {

        if (next < 100) {
            sum = sum + next;
            sumNum(next++); //error
        }

        return sum;
    }

    @Test
	public void test(){
		sumNum(1);
	}

 

来源：oschina

链接：https://my.oschina.net/iioschina/blog/4305100