Network overlapping check

Overlap.java

private static boolean overlap(final String net1, final String net2)
{
    SubnetInfo subnet1 = new SubnetUtils(net1).getInfo();
    SubnetInfo subnet2 = new SubnetUtils(net2).getInfo();

    int mask1 = subnet1.asInteger(subnet1.getNetmask());
    int mask2 = subnet2.asInteger(subnet2.getNetmask());

    int maskToUse = mask1 < mask2 ? mask1 : mask2;
    int addr1 = subnet1.asInteger(subnet1.getAddress()) & maskToUse;
    int addr2 = subnet2.asInteger(subnet2.getAddress()) & maskToUse;

    return addr1 == addr2;
}

public static void main(final String[] args)
{
    System.out.println(overlap("192.168.0.0/22", "192.168.0.0/24"));
    System.out.println(overlap("192.168.1.0/22", "192.168.0.0/24"));
    System.out.println(overlap("192.168.2.0/22", "192.168.0.0/24"));
    System.out.println(overlap("192.168.4.0/22", "192.168.0.0/24"));

    System.out.println(overlap("192.168.0.0/24", "192.168.0.0/24"));
    System.out.println(overlap("192.168.0.1/24", "192.168.0.0/24"));
}

Why Maven or Gradle and not Ant or plain javac?
This is not an OSS project. Just a code snippet without any context that I added here for further reference. There is no intent in making this usable to the rest of the world, thus it has no comments, env, context or anything else.
And it will remain like this.

Thanks for your unsolicited, useless, non-constructive comment! Hope you're not having a too much hard time trying to build this.

@nacx Thanks, this was helpful.