.artifact(name: "test-extra")
            .publish()
        def module2 = ivyHttpRepo.module("org.gradle", "other", "preview-1").publish()

        and:
        buildFile << """
repositories { ivy { url "${ivyHttpRepo.uri}" } }
configurations { compile }
dependencies {
    compile ("org.gradle:test:1.45") {
        artifact {
            name = 'test-extra'
            type = 'jar'
        }

	errs = append(errs, s.CloudProvider.Validate()...)
	errs = append(errs, validateClusterIPFlags(s.Extra)...)
	errs = append(errs, validateServiceNodePort(s.Extra)...)
	errs = append(errs, validatePublicIPServiceClusterIPRangeIPFamilies(s.Extra, *s.GenericServerRunOptions)...)

	if s.MasterCount <= 0 {
		errs = append(errs, fmt.Errorf("--apiserver-count should be a positive number, but value '%d' provided", s.MasterCount))
	}

type completedConfig struct {
	Generic genericapiserver.CompletedConfig
	*Extra
}

// CompletedConfig embeds a private pointer that cannot be instantiated outside of this package
type CompletedConfig struct {
	*completedConfig
}

func (c *Config) Complete() CompletedConfig {
	cfg := completedConfig{
		c.Generic.Complete(c.VersionedInformers),
		&c.Extra,
	}

		exact = true
		d0 = true
	}
	// Remove extra lower bits and keep rounding info.
	extra := uint(-dexp2)
	extraMask := uint32(1<<extra - 1)

	di, dfrac := di>>extra, di&extraMask
	roundUp := false
	if exact {
		// If we computed an exact product, d + 1/2
		// should round to d+1 if 'd' is odd.
		roundUp = dfrac > 1<<(extra-1) ||
			(dfrac == 1<<(extra-1) && !d0) ||
			(dfrac == 1<<(extra-1) && d0 && di&1 == 1)
	} else {

			copy(di.Groups, groups)
			sort.Strings(di.Groups)
		}

		if extra := u.GetExtra(); len(extra) > 0 {
			di.Extra = make(map[string][]string, len(extra))
			for k, vs := range extra {
				vdupe := make([]string, len(vs))
				copy(vdupe, vs)
				sort.Strings(vdupe)
				di.Extra[k] = vdupe
			}
		}

		serializableAttributes.User = di
	}

	var b strings.Builder

	var extra map[string]authenticationv1.ExtraValue
	if u.Extra != nil {
		extra = make(map[string]authenticationv1.ExtraValue, len(u.Extra))
		for k, v := range u.Extra {
			extra[k] = authenticationv1.ExtraValue(v)
		}
	}
	return authenticationv1.UserInfo{
		Username: u.Username,
		UID:      u.UID,
		Groups:   u.Groups,
		Extra:    extra,
	}

		!unmarshalCertificate(&s, &cert) {
		return nil, errors.New("tls: invalid session encoding")
	}
	for !extra.Empty() {
		var e []byte
		if !readUint24LengthPrefixed(&extra, &e) {
			return nil, errors.New("tls: invalid session encoding")
		}
		ss.Extra = append(ss.Extra, e)
	}
	switch extMasterSecret {
	case 0:
		ss.extMasterSecret = false
	case 1:
		ss.extMasterSecret = true
	default:

		},
		{
			name: "duplicate extra mapping key",
			in: api.ClaimMappings{
				Username: api.PrefixedClaimOrExpression{Expression: "claims.username"},
				Groups:   api.PrefixedClaimOrExpression{Expression: "claims.groups"},
				Extra: []api.ExtraMapping{

		ResourceRequest: false,
		Path:            in.Path,
		Verb:            in.Verb,
	}
}

func convertToUserInfoExtra(extra map[string]authorizationapi.ExtraValue) map[string][]string {
	if extra == nil {
		return nil
	}
	ret := map[string][]string{}
	for k, v := range extra {
		ret[k] = []string(v)
	}

	return ret
}

                configurations {
                    foo.attributes { $freeDebug; attribute(extra, 'extra') }
                    foo2.attributes { $freeDebug; attribute(extra, 'extra 2') }
                    bar.attributes { $freeRelease; attribute(extra, 'extra') }
                    bar2.attributes { $freeRelease; attribute(extra, 'extra 2') }
                }
                task fooJar(type: Jar) {