if (result == null) {
            String message = String.format(
                    "%s is not a valid log severity threshold. Valid severities are WARN/WARNING and ERROR.", input);
            throw new IllegalArgumentException(message);
        }
        return result;
    }

    public void record(Level logLevel) {
        if (!metThreshold && logLevel.toInt() >= logThreshold.toInt()) {
            metThreshold = true;

    }

    @Nonnull
    public Session getSession() {
        return session;
    }

    public static <T> T nonNull(T obj, String message) {
        if (obj == null) {
            throw new IllegalArgumentException(message);
        }
        return obj;
    }

    protected static <T> Collection<T> unmodifiable(Collection<T> obj) {
        return obj != null && !obj.isEmpty()

        this.repositorySystem = nonNull(repositorySystem);
    }

    @Override
    public void install(ArtifactInstallerRequest request) throws ArtifactInstallerException, IllegalArgumentException {
        nonNull(request, "request");
        InternalSession session = InternalSession.from(request.getSession());
        try {
            InstallRequest installRequest =

                        } else {
                            throw new IllegalArgumentException("Unrecognized entry: " + l);
                        }
                        String[] parts = l.split(splitExpr);
                        if (parts.length < 1) {
                            throw new IllegalArgumentException("Unrecognized entry: " + l);
                        }

     * @param repository the repository to deploy to
     * @param artifacts the collection of artifacts to deploy
     * @throws ArtifactDeployerException if the deployment failed
     * @throws IllegalArgumentException if an argument is {@code null} or invalid
     */
    default void deploy(
            @Nonnull Session session, @Nonnull RemoteRepository repository, @Nonnull Collection<Artifact> artifacts) {

        if (pluginBindings != null) {
            final int len = pluginBindings.length;

            if (len < 2 || len % 2 != 0) {
                throw new IllegalArgumentException("Plugin bindings must have more than 0, even count of elements");
            }

            defaultBindings = new LinkedHashMap<>(len / 2);

            for (int i = 0; i < len; i += 2) {

     *
     * @param id the id of the type to retrieve
     * @return the type
     */
    @Nonnull
    @Override
    default Type require(@Nonnull String id) {
        return lookup(id).orElseThrow(() -> new IllegalArgumentException("Unknown extensible enum value '" + id + "'"));
    }

                    new StringReader("<configuration>" + xml + "</configuration>"),
                    (XmlNodeStaxBuilder.InputLocationBuilderStax) null));
        } catch (XMLStreamException e) {
            throw new IllegalArgumentException(e);
        }
    }

    @Test
    void testMinimal() throws BeanConfigurationException {
        SomeBean bean = new SomeBean();

        Xpp3Dom config = toConfig("<file>test</file>");

                                Stream.of(value).filter(c -> !c.isInterface()).collect(Collectors.toList());
                        if (!nonInterfaces.isEmpty()) {
                            throw new IllegalArgumentException(
                                    "The Typed annotation must contain only interfaces but the following types are not: "
                                            + nonInterfaces);
                        }

        if (!isBlankVersion) {
            boolean isRequirementMet = false;
            try {
                isRequirementMet = runtimeInformation.isMavenVersion(requiredMavenVersion);
            } catch (IllegalArgumentException e) {
                logger.warn(
                        "Could not verify plugin's Maven prerequisite as an invalid version is given in "
                                + requiredMavenVersion,