Hibernate Search 5.2.1 发布了，该版本修复了两个 bug：
** Bug
* [HSEARCH-1973] - ConnectedMultiFieldsTermQueryBuilder must unwrap a NullEncodingTwoWayFieldBridge before checking for NumericFieldBridge
* [HSEARCH-1981] - QueryBuilder should not tokenize the null-token when searching for null
软件详情：http://sourceforge.net/projects/hibernate/files/
来自:开源中国社区
