To allow for the future modularization of Elasticsearch with Java Modules, there are a number preparatory tasks that need be completed. This is one such task: eliminate split packages.

Split packages with Lucene:

• plugins/analysis-ukrainian/src/main/java/org/apache/lucene/analysis/uk/XUkrainianMorfologikAnalyzer.java
• x-pack/plugin/spatial/src/test/java/org/apache/lucene/geo/XShapeTestUtil.java
• x-pack/plugin/search-business-rules/src/main/java/org/apache/lucene/search/CappedScorer.java (Fix split package in search business rules module #78139)
• x-pack/plugin/search-business-rules/src/main/java/org/apache/lucene/search/CappedScoreQuery.java
• x-pack/plugin/search-business-rules/src/main/java/org/apache/lucene/search/CappedScoreWeight.java
• server/src/main/java/org/apache/lucene/index/LazySoftDeletesDirectoryReaderWrapper.java
  • Lucene PR LUCENE-10369: Move DelegatingCacheHelper to FilterDirectoryReader apache/lucene#596
  • ES issue (Fix split package LazySoftDeletesDirectoryReaderWrapper #81981)
• server/src/main/java/org/apache/lucene/document/BinaryRange.java (Fix split package org.apache.lucene.document #78186)
• server/src/main/java/org/apache/lucene/index/OneMergeHelper.java
  • LUCENE-10118
  • ES leverage LUCENE-10118
• server/src/main/java/org/apache/lucene/search/grouping/CollapsingTopDocsCollector.java (Fork FirstPassGroupingCollector into a custom single pass collector #79224)
• server/src/main/java/org/apache/lucene/search/grouping/CollapsingDocValuesSource.java (Fork FirstPassGroupingCollector into a custom single pass collector #79224)
• server/src/main/java/org/apache/lucene/search/uhighlight/BoundedBreakIteratorScanner.java (Avoid unnecessary split package with lucene-highlighter #78099)
• server/src/main/java/org/apache/lucene/search/uhighlight/Snippet.java
• server/src/main/java/org/apache/lucene/search/uhighlight/CustomPassageFormatter.java
• server/src/main/java/org/apache/lucene/search/uhighlight/CustomUnifiedHighlighter.java
• server/src/main/java/org/apache/lucene/search/uhighlight/CustomFieldHighlighter.java
• server/src/main/java/org/apache/lucene/search/grouping/CollapseTopFieldDocs.java (Fork FirstPassGroupingCollector into a custom single pass collector #79224)
• server/src/main/java/org/apache/lucene/search/vectorhighlight/CustomFieldQuery.java (Fix split package org.apache.lucene.search.vectorhighlight #81041)
• server/src/main/java/org/apache/lucene/index/ShuffleForcedMergePolicy.java
  • LUCENE-10132
  • ES leverage LUCENE-10132
• server/src/main/java/org/apache/lucene/util/CombinedBitSet.java (Fix split package org.apache.lucene.util #78189 )
• server/src/main/java/org/apache/lucene/queries/SpanMatchNoDocsQuery.java (Fix split package org.apache.lucene.queries #81043)
• server/src/main/java/org/apache/lucene/queries/BinaryDocValuesRangeQuery.java (Fix split package org.apache.lucene.queries #81043)
• server/src/main/java/org/apache/lucene/queries/BlendedTermQuery.java (Fix split package org.apache.lucene.queries #81043)
• server/src/main/java/org/apache/lucene/queryparser/classic/XQueryParser.java
  • Preparatory change committed in LUCENE-10115
  • ES leverage LUCENE-10115 (Fix split package org.apache.lucene.queryparser.classic #78307)
• server/src/main/java/org/apache/lucene/analysis/miscellaneous/DisableGraphAttribute.java (Fix split package org.apache.lucene.analysis.miscellaneous #78205)
• server/src/main/java/org/apache/lucene/analysis/miscellaneous/DuplicateByteSequenceSpotter.java
• server/src/main/java/org/apache/lucene/analysis/miscellaneous/DuplicateSequenceAttributeImpl.java
• server/src/main/java/org/apache/lucene/analysis/miscellaneous/DeDuplicatingTokenFilter.java
• server/src/main/java/org/apache/lucene/analysis/miscellaneous/DuplicateSequenceAttribute.java
• server/src/main/java/org/apache/lucene/analysis/miscellaneous/DisableGraphAttributeImpl.java
• server/src/main/java/org/apache/lucene/search/XCombinedFieldQuery.java (Remove XCombinedFieldQuery workaround #77978)
• server/src/main/java/org/apache/lucene/search/XMultiNormsLeafSimScorer.java

#### Split packages within ES itself:

• Fix split package in reindex module (Fix split package in reindex module #78141)
• Fix split package in search business rules module (Fix split package in search business rules module #78139)
• Move ccr info/usage actions into ccr module (Move ccr info/usage actions into ccr module #78137)
• Fix split packages in external test modules (Fix split packages in external test modules #78136)
• Fix split package in annotated text plugin (Fix split package in annotated text plugin #78133)
• Fix split package in netty4 module (Fix split package in netty4 module #78132)
• Fix split package in mapper-extras module (Fix split package in mapper-extras module #78131)
• Fix split package in aggs-matrix-stats module (Fix split package in aggs-matrix-stats module #78130)
• Fix split package in keystore-cli (Fix split package in keystore-cli #78047)
• Fix split packages in analysis-ukranian plugin (Fix split packages in analysis-ukranian plugin #78046)
• Fix split package in analysis-smartcn plugin (Fix split package in analysis-smartcn plugin #78045)
• Fix split package in analysis-phonetic plugin (Fix split package in analysis-phonetic plugin #78044)
• Fix split package in analysis-nori plugin (Fix split package in analysis-nori plugin #78040)
• Fix split package in analysis-kuromoji plugin (Fix split package in analysis-kuromoji plugin #78039)
• Fix split package in analysis-icu plugin (Fix split package in analysis-icu plugin #78037)
• Fix split packages in plugin cli (Fix split packages in plugin cli #78027)
• Fix split package org.elasticsearch.common.xcontent (Fix split package org.elasticsearch.common.xcontent #78831)
• Fix split package org.elasticsearch.client (Fix split package org.elasticsearch.client #81984)
• ...