Simple SemVer version parsing and comparison in Java

Version.java

public class Version implements Comparable<Version> {
    @NonNull
    public final int[] numbers;

    public Version(@NonNull String version) {
        final String split[] = version.split("\\-")[0].split("\\.");
        numbers = new int[split.length];
        for (int i = 0; i < split.length; i++) {
            numbers[i] = Integer.valueOf(split[i]);
        }
    }

    @Override
    public int compareTo(@NonNull Version another) {
        final int maxLength = Math.max(numbers.length, another.numbers.length);
        for (int i = 0; i < maxLength; i++) {
            final int left = i < numbers.length ? numbers[i] : 0;
            final int right = i < another.numbers.length ? another.numbers[i] : 0;
            if (left != right) {
                return left < right ? -1 : 1;
            }
        }
        return 0;
    }
}

VersionTest.java

public class VersionTest {
    @Test
    public void newInstance_withTwoDotRelease_isParsedCorrectly() {
        final Version version = new Version("1.26.6");
        assertThat(version.numbers, is(new int[]{1, 26, 6}));
    }

    @Test
    public void newInstance_withTwoDotReleaseAndPreReleaseName_isParsedCorrectly() {
        final Version version = new Version("1.26.6-DEBUG");
        assertThat(version.numbers, is(new int[]{1, 26, 6}));
    }

    @Test
    public void compareTo_withEarlierVersion_isGreaterThan() {
        assertThat(new Version("2.0.0").compareTo(new Version("1.0.0")), is(1));
    }

    @Test
    public void compareTo_withSameVersion_isEqual() {
        assertThat(new Version("2.0.0").compareTo(new Version("2.0.0")), is(0));
    }

    @Test
    public void compareTo_withLaterVersion_isLessThan() {
        assertThat(new Version("1.0.0").compareTo(new Version("2.0.0")), is(-1));
    }

    @Test
    public void compareTo_withMorePreciseSameVersion_isFalse() {
        assertThat(new Version("1").compareTo(new Version("1.0.0")), is(0));
    }

    @Test
    public void compareTo_withMorePreciseEarlierVersion_isFalse() {
        assertThat(new Version("2").compareTo(new Version("1.0.0")), is(1));
    }

    @Test
    public void compareTo_withMorePreciseLaterVersion_isLessThan() {
        assertThat(new Version("1").compareTo(new Version("1.0.1")), is(-1));
    }
}

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