@Nullable
    public LocalBuildCacheService getLocal() {
        return local;
    }

    public boolean isLocalPush() {
        return localPush;
    }

    @Nullable
    public BuildCacheService getRemote() {
        return remote;
    }

    public boolean isRemotePush() {
        return remotePush;
    }

    private void findCommunicationAddresses() throws UnknownHostException {
        communicationAddresses = new ArrayList<InetAddress>();
        if (inetAddresses.getLoopback().isEmpty()) {
            if (inetAddresses.getRemote().isEmpty()) {
                InetAddress fallback = InetAddress.getByName(null);
                logger.debug("No loopback addresses for communication, using fallback {}", fallback);

        }
    }

    public List<InetAddress> getLoopback() {
        return loopback;
    }

    public List<InetAddress> getRemote() {
        return remote;
    }

    }

    private void loopbackAddresses(List<InetAddress> loopback) {
        addresses.getLoopback() >> loopback
    }

    private void remoteAddresses(List<InetAddress> remote) {
        addresses.getRemote() >> remote
    }

        boolean isLocalEnabled();

        boolean isRemoteEnabled();

        @Nullable
        BuildCacheDescription getLocal();

        @Nullable
        BuildCacheDescription getRemote();

        interface BuildCacheDescription {

            /**
             * The class name of the DSL configuration type.
             *
             * E.g. {@code org.gradle.caching.local.DirectoryBuildCache}.

     */
    void local(Action<? super DirectoryBuildCache> configuration);

    /**
     * Returns the remote cache configuration.
     */
    @Nullable
    BuildCache getRemote();

    /**
     * Configures a remote cache with the given type.
     * <p>
     * If a remote build cache has already been configured with a different type, this method replaces it.
     * </p>
     * <p>

    public void local(Action<? super DirectoryBuildCache> configuration) {
        configuration.execute(local);
    }

    @Nullable
    @Override
    public BuildCache getRemote() {
        return remote;
    }

    @Override
    public void setRemote(@Nullable BuildCache remote) {
        this.remote = remote;
    }

    @Override
    public <T extends BuildCache> T remote(Class<T> type) {

    /**
     * Replaces local directory build cache.
     */
    void setLocal(DirectoryBuildCache local);

    /**
     * Replaces remote build cache.
     */
    void setRemote(@Nullable BuildCache remote);

    /**
     * Gets build cache service registrations
     */
    Set<BuildCacheServiceRegistration> getRegistrations();

    /**
     * Replaces build cache service registrations

		errs = AppendValidation(errs, ValidateHTTPHeaderWithAuthorityOperationName(name))
		errs = AppendValidation(errs, ValidateHTTPHeaderValue(val))
	}
	for _, name := range http.Headers.GetRequest().GetRemove() {
		errs = AppendValidation(errs, ValidateHTTPHeaderOperationName(name))
	}
	for name, val := range http.Headers.GetResponse().GetAdd() {
		errs = AppendValidation(errs, ValidateHTTPHeaderOperationName(name))

        return null;
    }

    private Collection<Ref> getRemoteRefs(GitVersionControlSpec gitSpec, boolean tags, boolean heads) {
        try {
            return configureTransport(Git.lsRemoteRepository()).setRemote(normalizeUri(gitSpec.getUrl())).setTags(tags).setHeads(heads).call();
        } catch (URISyntaxException | GitAPIException e) {
            throw wrapGitCommandException("ls-remote", gitSpec.getUrl(), null, e);
        }