Objects.requireNonNull(proxy, "proxy cannot be null");

        for (Proxy p : getProxies()) {
            if (p.getId() != null && p.getId().equals(proxy.getId())) {
                return this;
            }
        }

        getProxies().add(proxy);

        return this;
    }

    @Override
    public List<Server> getServers() {

        if (session != null) {
            request.setServers(session.getRequest().getServers());
            request.setMirrors(session.getRequest().getMirrors());
            request.setProxies(session.getRequest().getProxies());
        }
    }

    public void resolve(
            Artifact artifact,
            List<ArtifactRepository> remoteRepositories,
            ArtifactRepository localRepository,

        request.setServers(session.getRequest().getServers());
        request.setMirrors(session.getRequest().getMirrors());
        request.setProxies(session.getRequest().getProxies());

        for (MavenProject project : projects) {
            request.setArtifact(new ProjectArtifact(project));
            request.setArtifactDependencies(project.getDependencyArtifacts());

            }
            if (settings.isOffline()) {
                addViolation(problems, BuilderProblem.Severity.WARNING, "offline", null, msgS);
            }
            if (!settings.getProxies().isEmpty()) {
                addViolation(problems, BuilderProblem.Severity.WARNING, "proxies", null, msgP);
            }
            if (settings.isUsePluginRegistry()) {

            mirrors = new ArrayList<>();
        }

        return mirrors;
    }

    public ArtifactResolutionRequest setProxies(List<Proxy> proxies) {
        this.proxies = proxies;

        return this;
    }

    public List<Proxy> getProxies() {
        if (proxies == null) {
            proxies = new ArrayList<>();
        }

        return proxies;
    }

    //

        if (session != null && protocol != null) {
            MavenExecutionRequest request = session.getRequest();

            if (request != null) {
                List<Proxy> proxies = request.getProxies();

                if (proxies != null) {
                    for (Proxy proxy : proxies) {
                        if (proxy.isActive() && protocol.equalsIgnoreCase(proxy.getProtocol())) {

        //      <password>somepassword</password>
        //      <nonProxyHosts>www.google.com|*.somewhere.com</nonProxyHosts>
        //    </proxy>
        //  </proxies>

        for (Proxy proxy : settings.getProxies()) {
            if (!proxy.isActive()) {
                continue;
            }

            proxy = proxy.clone();

            request.addProxy(proxy);
        }

        // <mirrors>

            request.setServers(session.getRequest().getServers());
            request.setMirrors(session.getRequest().getMirrors());
            request.setProxies(session.getRequest().getProxies());
        }
    }

    @SuppressWarnings("checkstyle:parameternumber")
    public ArtifactResolutionResult collect(
            Set<Artifact> artifacts,
            Artifact originatingArtifact,

            sessionBuilder.setVersionFilter(versionFilter);
        }

        DefaultSettingsDecryptionRequest decrypt = new DefaultSettingsDecryptionRequest();
        decrypt.setProxies(request.getProxies());
        decrypt.setServers(request.getServers());
        SettingsDecryptionResult decrypted = settingsDecrypter.decrypt(decrypt);

        if (logger.isDebugEnabled()) {

                .localRepository(localRepo != null ? localRepo.getAbsolutePath() : null)
                .interactiveMode(request.isInteractiveMode())
                .offline(request.isOffline())
                .proxies(request.getProxies().stream().map(Proxy::getDelegate).collect(Collectors.toList()))
                .servers(request.getServers().stream().map(Server::getDelegate).collect(Collectors.toList()))