@Override
    public List<Toolchain> getToolchains(MavenSession session, String type, Map<String, String> requirements) {
        List<ToolchainModel> models = session.getRequest().getToolchains().get(type);

        return selectToolchains(models, type, requirements);
    }

    private List<Toolchain> selectToolchains(
            List<ToolchainModel> models, String type, Map<String, String> requirements) {

            throws ToolchainManagerException {
        MavenSession s = InternalMavenSession.from(session).getMavenSession();
        return Optional.ofNullable(toolchainManagerPrivate.getToolchainFromBuildContext(type, s))
                .map(this::toToolchain);
    }

    @Override
    public List<Toolchain> getToolchainsForType(Session session, String type) throws ToolchainManagerException {