// Test when baseDn or accountFilter is blank
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getLdapBaseDn() {
                return "";
            }

            @Override
            public String getLdapAccountFilter() {
                return "";
            }
        });

    }

    @Override
    public String[] getPermissions() {
        if (permissions == null) {
            final FessConfig fessConfig = ComponentUtil.getFessConfig();
            final String baseDn = fessConfig.getLdapBaseDn();
            final String accountFilter = fessConfig.getLdapAccountFilter();
            final String groupFilter = fessConfig.getLdapGroupFilter();

        form.ldapAdminSecurityCredentials =
                StringUtil.isNotBlank(fessConfig.getLdapAdminSecurityCredentials()) ? DUMMY_PASSWORD : StringUtil.EMPTY;
        form.ldapBaseDn = fessConfig.getLdapBaseDn();
        form.ldapAccountFilter = fessConfig.getLdapAccountFilter();
        form.ldapGroupFilter = fessConfig.getLdapGroupFilter();
        form.ldapMemberofAttribute = fessConfig.getLdapMemberofAttribute();