Apache Lucene 5.4.1 发布，更新如下：
Bug 修复 (9)
LUCENE-6918: LRUQueryCache.onDocIdSetEviction is only called when at least one DocIdSet is being evicted.
(Adrien Grand)
LUCENE-6946: SortField.equals now takes the missingValue parameter into account.
(Adrien Grand)
SOLR-7865: BlendedInfixSuggester was returning too many results
(Arcadius Ahouansou via Mike McCandless)
LUCENE-6929: Fix SpanNotQuery rewriting to not drop the pre/post parameters.
(Tim Allison via Adrien Grand)
LUCENE-6910: fix 'if ... > Integer.MAX_VALUE' check in (Binary|Numeric)DocValuesFieldUpdates.merge (https://scan.coverity.com/projects/5620 CID 119973 and CID 120081) (Christine Poerschke, Coverity Scan (via Rishabh Patel))
LUCENE-6950: Fix FieldInfos handling of UninvertingReader, e.g. do not hide the true docvalues update generation or other properties.
(Ishan Chattopadhyaya via Robert Muir)
LUCENE-6948: Fix ArrayIndexOutOfBoundsException in PagedBytes$Reader.fill by removing an unnecessary long-to-int cast.
(Michael Lawley via Christine Poerschke)
LUCENE-6970: Fixed off-by-one error in Lucene54DocValuesProducer that could potentially corrupt doc values.
(Adrien Grand)
LUCENE-2229: Fix Highlighter's SimpleSpanFragmenter when multiple adjacent stop words following a span can unduly make the fragment way too long.
(Elmer Garduno, Lukhnos Liu via David Smiley)
Lucene 是apache软件基金会一个开放源代码的全文检索引擎工具包，是一个全文检索引擎的架构，提供了完整的查询引擎和索引引擎，部分文本分析引擎。 Lucene的目的是为软件开发人员提供一个简单易用的工具包，以方便的在目标系统中实现全文检索的功能，或者是以此为基础建立起完整的全文检索引擎。
Lucene 最初是由Doug Cutting所撰写的，是一位资深全文索引/检索专家，曾经是V-Twin搜索引擎的主要开发者，后来在Excite担任高级系统架构设计师，目前从事 于一些INTERNET底层架构的研究。他贡献出Lucene的目标是为各种中小型应用程式加入全文检索功能。
OSChina 使用 Lucene 实现全文搜索。
软件详情：http://apache.fayea.com/lucene/java/5.4.1/changes/Changes.html#v5.4.1.bug_fixes
下载地址：http://apache.fayea.com/lucene/java/5.4.1/
来自:开源中国社区
