tasks.register("verifyCatalogs") {
                doLast {
                    def libs = catalogs.named("libs")
                    assert libs.findVersion('my-ver').present
                    assert libs.findVersion('my_ver').present
                    assert libs.findVersion('my.ver').present

                    assert libs.findLibrary('my-lib').present
                    assert libs.findLibrary('my_lib').present

		key = ""
	}
	var u uuid.UUID
	if key != "" {
		u, err = uuid.Parse(key)
		if err != nil {
			return -1, nil, errFileVersionNotFound
		}
	}
	return x.findVersion(u)
}

func (x *xlMetaV2) findVersion(key [16]byte) (idx int, ver *xlMetaV2Version, err error) {
	for i, ver := range x.versions {
		if key == ver.header.VersionID {
			obj, err := x.getIdx(i)
			return i, obj, err
		}