Do you know what is wrong with this code? 
public class Solution {
    public static int min(int a, int b, int c) {
      int m2;
      if ((a < b) && (a < c)){
         m2 = a;
      }
      if ((b < a) && (b < c)){
         m2 = b;
       }
       if ((c < a) && (c < b)){
            m2 = c;
       }
      return m2;
    }

    public static void main(String[] args) throws Exception {
        System.out.println(min(1, 2, 3));
        System.out.println(min(-1, -2, -3));
        System.out.println(min(3, 5, 3));
        System.out.println(min(5, 5, 10));
    }
}