if (defaultWords == null) {
            updateDefaultBadwords();
        }
        final String[] concat = new String[defaultWords.length + badWords.length];
        System.arraycopy(badWords, 0, concat, 0, badWords.length);
        System.arraycopy(defaultWords, 0, concat, badWords.length, defaultWords.length);
        return concat;
    }

    /**
     * Add a bad word.
     * @param badWord Bad word
     */

        final String[] roles = new String[roles1.length + roles2.length];

        if (roles1.length > 0) {
            System.arraycopy(roles1, 0, roles, 0, roles1.length);
        }
        if (roles2.length > 0) {
            System.arraycopy(roles2, 0, roles, roles1.length, roles2.length);
        }

        final List<SuggestItem> items = new ArrayList<>(fields.length);
        try {

            final Extractor[] existingExtractors = extractorMap.get(key);

            final Extractor[] newExtractors = new Extractor[existingExtractors.length + 1];
            System.arraycopy(existingExtractors, 0, newExtractors, 0, existingExtractors.length);
            newExtractors[newExtractors.length - 1] = extractor;

            Arrays.sort(newExtractors, Comparator.comparingInt(Extractor::getWeight).reversed());

        if (roles == null || roles.length == 0) {
            this.roles = new String[] { SuggestConstants.DEFAULT_ROLE };
        } else {
            this.roles = new String[roles.length];
            System.arraycopy(roles, 0, this.roles, 0, roles.length);
        }

        this.languages = languages != null ? languages : new String[] {};

        kinds = new Kind[] { kind };
        if (userBoost > 1) {