* comment: The common return path of all mail
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getMailReturnPath();

    /**
     * The simple implementation for configuration.
     * @author FreeGen
     */
    public static class SimpleImpl extends ObjectiveConfig implements FessEnv {

        /** The serial version UID for object serialization. (Default) */

        }
    }

    @Test
    public void searchTestWithBoost() throws Exception {
        String field = "content";
        String query1 = "java";
        String query2 = "sample";
        Map<String, String> params = new HashMap<>();
        params.put("q", field + ":" + query1 + "^1000 OR " + field + ":" + query2);
        params.put("num", "100");

#                                                      LDAP
#                                                     ------

ldap.admin.enabled=false
ldap.admin.user.filter=uid\=%s
ldap.admin.user.base.dn=ou\=People,dc\=fess,dc\=codelibs,dc\=org
ldap.admin.user.object.classes=organizationalPerson,top,person,inetOrgPerson
ldap.admin.role.filter=cn\=%s
ldap.admin.role.base.dn=ou\=Role,dc\=fess,dc\=codelibs,dc\=org

        new PrefixQueryCommand().register();
        new TermQueryCommand().register();
        new TermRangeQueryCommand().register();
        new WildcardQueryCommand().register();
    }

    public void test_build_simple() {
        float titleBoost = 0.5f;
        float contentBoost = 0.05f;

        assertQuery(functionScoreQuery(simpleQuery("QUERY", titleBoost, contentBoost)), //
                Map.of("_default", List.of("QUERY")), //