return proxies.isEmpty() ? null : proxies.get(0);
    }

    @Override
    public List<Proxy> getProxies() {
        return proxies;
    }

    @Override
    public List<SettingsProblem> getProblems() {
        return problems;
    }

        try {
            return newResult(readModel(null, pomFile, request, collector), collector.getProblems());
        } catch (ModelBuildingException e) {
            return error(collector.getProblems());
        }
    }

    private Model readModel(

     *
     * @return The problems that were encountered during the decryption, can be empty but never {@code null}.
     */
    List<SettingsProblem> getProblems();

     *
     * @return the problems that were encountered during the project building, can be empty but never {@code null}
     */
    @Nonnull
    Collection<BuilderProblem> getProblems();

    /**
     * Gets the result of the dependency resolution for the project.
     *
     * @return the result of the dependency resolution for the project
     */
    @Nonnull

     * the model builder to fail with a {@link ModelBuildingException}.
     *
     * @return The problems that were encountered during the model building, can be empty but never {@code null}.
     */
    List<ModelProblem> getProblems();

        context.eventSpyDispatcher.onEvent(toolchainsResult);

        context.effectiveToolchains = toolchainsResult.getEffectiveToolchains();

        if (toolchainsResult.getProblems().hasWarningProblems()) {
            int totalProblems = toolchainsResult.getProblems().totalProblemsReported();
            context.logger.info("");
            context.logger.info(String.format(

        Result<? extends ProjectDependencyGraph> graphResult = buildGraph(session);

        if (graphResult.hasErrors()) {
            return addExceptionToResult(
                    result, graphResult.getProblems().iterator().next().getException());
        }

        try {
            session.setProjectMap(getProjectMap(session.getProjects()));
        } catch (DuplicateProjectException e) {

    }

    private ExceptionSummary handle(ProjectBuildingResult result) {
        List<ExceptionSummary> children = new ArrayList<>();

        for (ModelProblem problem : result.getProblems()) {
            ExceptionSummary child = handle(problem, result.getProjectId());
            if (child != null) {
                children.add(child);
            }
        }

                    server = result.getServer();

                    if (logger.isDebugEnabled()) {
                        for (SettingsProblem problem : result.getProblems()) {
                            logger.debug(problem.getMessage(), problem.getException());
                        }
                    }

        context.localRepositoryPath = localRepositoryPath(context);

        if (emitSettingsWarnings && settingsResult.getProblems().hasWarningProblems()) {
            int totalProblems = settingsResult.getProblems().totalProblemsReported();
            context.logger.info("");
            context.logger.info(String.format(