assertEquals(0, fields.length);
    }

    public void test_indexAdminFloatFields() {
        String fieldsStr = fessConfig.getIndexAdminFloatFields();
        assertEquals("", fieldsStr);
        String[] fields = fieldsStr.isEmpty() ? new String[0] : fieldsStr.split(",");
        assertEquals(0, fields.length);
    }

    }

    String getIndexAdminFloatFields();

    default Set<String> getIndexAdminFloatFieldSet() {
        @SuppressWarnings("unchecked")
        Set<String> fieldSet = (Set<String>) propMap.get(INDEX_ADMIN_FLOAT_FIELD_SET);
        if (fieldSet == null) {
            fieldSet = split(getIndexAdminFloatFields(), ",")