// Should not throw exception
        relatedQueryHelper.load();

        String[] results = relatedQueryHelper.getRelatedQueries("anyterm");
        assertEquals(0, results.length);
    }

    @Test
    public void test_inheritance_setReloadInterval() {
        assertEquals(1000L, relatedQueryHelper.reloadInterval);

        relatedQueryHelper.setReloadInterval(5000L);

     */
    @Resource
    protected RelatedContentHelper relatedContentHelper;

    /**
     * The helper for related queries.
     */
    @Resource
    protected RelatedQueryHelper relatedQueryHelper;

    // ===================================================================================
    //                                                                               Hook

            if (StringUtil.isNotBlank(query)) {
                if (ComponentUtil.hasRelatedQueryHelper()) {
                    final RelatedQueryHelper relatedQueryHelper = ComponentUtil.getRelatedQueryHelper();
                    final String[] relatedQueries = relatedQueryHelper.getRelatedQueries(query);
                    if (relatedQueries.length == 0) {
                        appendQuery(queryBuf, query);

import org.codelibs.fess.helper.ProtocolHelper;
import org.codelibs.fess.helper.QueryHelper;
import org.codelibs.fess.helper.RateLimitHelper;
import org.codelibs.fess.helper.RelatedContentHelper;
import org.codelibs.fess.helper.RelatedQueryHelper;
import org.codelibs.fess.helper.RoleQueryHelper;
import org.codelibs.fess.helper.SambaHelper;
import org.codelibs.fess.helper.SearchHelper;
import org.codelibs.fess.helper.SearchLogHelper;