Apache Jackrabbit 是由 Apache Foundation 提供的 JSR-170 的开放源码实现.
Jackrabbit 团队今天发布了 2.1.1 版本，下载地址：
http://jackrabbit.apache.org/downloads.html
该版本主要改进内容包括：
Improvements
[JCR-2672] Cache also failed principal lookups
Bug fixes
[JCR-2579] InvalidItemStateException when attempting concurrent, non ...
[JCR-2598] Saving concurrent sessions executing random operations ...
[JCR-2611] DefaultHighlighter.java does not encode illegal XML characters
[JCR-2613] NoSuchItemStateException on checkin after removeVersion in ...
[JCR-2616] ItemInfoCacheImpl.getNodeInfo() and .getPropertyInfo() might ...
[JCR-2671] AbstractLoginModule must not call abort() in commit()
[JCR-2681] XMLPersistanceManager doesn't preserve a property's