4.0.0 org.apache.lucene lucene-contrib @version@ org.apache.lucene lucene-collation Lucene CollationKeyFilter/Analyzer & ICUCollationKeyFilter/Analyzer @version@ CollationKeyFilter, ICUCollationKeyFilter, CollationKeyAnalyzer, and ICUCollationKeyAnalyzer - converts tokens into indexable collation keys jar com.ibm.icu icu4j ${icu-version}