versions = ["2.0.10", "2.0.11", "2.0.12", ...] 
versions.sort()

versions.sort({ a, b -> 
        def (x1, y1, z1) = a.split("\\.").collect { it.toInteger() }
        def (x2, y2, z2) = b.split("\\.").collect { it.toInteger() }
        (x1 <=> x2).asBoolean() ? x1 <=> x2 : 
        (y1 <=> y2).asBoolean() ? y1 <=> y2 : z1 <=> z2
    })

list.sort { (it.replace('.', '') as int) }

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class TestVersion {

    public static void main(String[] args) {
        
        List<ComparableVersion> l = new ArrayList<>();
        l.add(new ComparableVersion("2.0.1"));
        l.add(new ComparableVersion("2.12.2"));
        l.add(new ComparableVersion("2.1.2"));
        l.add(new ComparableVersion("13.1.2"));
        l.add(new ComparableVersion("3.1.2"));
        l.add(new ComparableVersion("2.0.2"));
        l.add(new ComparableVersion("2.0.12"));
        l.add(new ComparableVersion("2.0.1"));
        l.add(new ComparableVersion("2.0.13"));
        l.add(new ComparableVersion("2.0.4"));
        Object[] a = l.toArray();
        
        Arrays.sort(a);
        
        for (Object cv : a) {
            System.out.println(cv);
        }
    }
}

$ javac ComparableVersion.java

$ groovy -version
Groovy Version: 2.4.15 JVM: 1.8.0_121 Vendor: Oracle Corporation OS:

$ groovy TestVersion.groovy
2.0.1
2.0.1
2.0.2
2.0.4
2.0.12
2.0.13
2.1.2
2.12.2
3.1.2
13.1.2

$