Java Class To Create Slugs

SlugService.java

/*
 * Copyright (C) 2018 Clivern <http://clivern.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
import java.text.Normalizer;
import java.text.Normalizer.Form;
import java.util.Locale;
import java.util.regex.Pattern;

/**
 * Slug Service
 */
public class SlugService {

    private static final Pattern NONLATIN = Pattern.compile("[^\\w-]");
    private static final Pattern WHITESPACE = Pattern.compile("[\\s]");

    public static String makeSlug(String input) throws IllegalArgumentException {
        if (input == null){
            throw new IllegalArgumentException();
        }

        String nowhitespace = WHITESPACE.matcher(input).replaceAll("-");
        String normalized = Normalizer.normalize(nowhitespace, Form.NFD);
        String slug = NONLATIN.matcher(normalized).replaceAll("");
        return slug.toLowerCase(Locale.ENGLISH);
    }
}