String[] roles = { "role1" };
        String[] fields = { "field1" };
        String[] excludes = { "exclude1" };

        String result1 = popularWordHelper.getCacheKey(seed, tags1, roles, fields, excludes);
        String result2 = popularWordHelper.getCacheKey(seed, tags2, roles, fields, excludes);

        assertEquals(result1, result2);
    }

    public void test_getCacheKey_nullSeed() {
        String seed = null;

                return fields;
            }

            @Override
            public String[] getQueryAdditionalScrollResponseFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalCacheResponseFields(String... fields) {
                return fields;
            }

            @Override

			<filtered>false</filtered>
		</fileSet>
		<!-- es/modules -->
		<fileSet>
			<directory>${project.basedir}/modules</directory>
			<outputDirectory>fess-${project.version}/es/modules</outputDirectory>
		</fileSet>
		<!-- es/plugins -->
		<fileSet>
			<directory>${project.basedir}/plugins</directory>
			<outputDirectory>fess-${project.version}/es/plugins</outputDirectory>
		</fileSet>
		<!-- es/data -->
		<fileSet>

            return SortBuilders.scoreSort().order(order);
        }
        return SortBuilders.fieldSort(field).order(order);
    }

    /**
     * Sets the prefix used for highlight field names in search results.
     *
     * @param highlightPrefix the prefix string to use for highlight fields
     */
    public void setHighlightPrefix(final String highlightPrefix) {

     * @param fields array of fields to search in
     * @param excludes array of words to exclude from results
     * @return list of popular words matching the criteria
     */
    public List<String> getWordList(final SearchRequestType searchRequestType, final String seed, final String[] tags, final String[] roles,
            final String[] fields, final String[] excludes) {

    }

    /**
     * Test field count to ensure no unexpected fields are added
     */
    public void test_fieldCount() throws Exception {
        Field[] fields = FessLabels.class.getDeclaredFields();
        int labelConstantCount = 0;
        int serialVersionUIDCount = 0;

        for (Field field : fields) {
            if (field.getName().equals("serialVersionUID")) {

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);
        }
        return sourceMap;
    }

    @Override

                return fields;
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override

        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    public LocalDateTime getRequestedAt() {
        return getCreatedAt();
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);

            final Map<String, String[]> fields = new HashMap<>();
            for (final Map.Entry<String, String[]> entry : request.getParameterMap().entrySet()) {
                final String key = entry.getKey();
                if (key.startsWith("fields.")) {
                    final String[] value = simplifyArray(entry.getValue());
                    fields.put(key.substring("fields.".length()), value);
                }