Commons Lang、IntRange#toString

import org.apache.commons.lang.math.IntRange;

public class C2009061200 {
    public static void main(String[] args) {
        System.out.println(new IntRange(1, 3));
        System.out.println(new IntRange(1, 3).toString());
    }
}

で、

Range[1,3]
Range[1,3]