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https://issues.apache.org/jira/browse/MINDEXER-225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17965378#comment-17965378
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Olivier Lamy commented on MINDEXER-225:
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This project has moved from Jira to GitHub Issues. This issue was migrated to
[apache/maven-indexer#668|https://github.com/apache/maven-indexer/issues/668].
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> Indexer-reader handles classNames differently to JarFileContentsIndexCreator
> ----------------------------------------------------------------------------
>
> Key: MINDEXER-225
> URL: https://issues.apache.org/jira/browse/MINDEXER-225
> Project: Maven Indexer (Moved to GitHub Issues)
> Issue Type: Bug
> Affects Versions: 7.1.3
> Reporter: Emeric Werner
> Priority: Major
>
> The indexer-reader RecordCompactor and RecordExpander classes separate
> individual entries of the `classNames` entry using the field separator `|`
> (see
> [https://github.com/apache/maven-indexer/blob/87627e0e797c1b3cc5bb5f007b94b0371b97f7e0/indexer-reader/src/main/java/org/apache/maven/index/reader/RecordExpander.java#L212]
> ). However, the JarFileContentsIndexCreator class in indexer-core uses
> newlines (`\n`) as a separator between classes as seen in
> [https://github.com/apache/maven-indexer/blob/87627e0e797c1b3cc5bb5f007b94b0371b97f7e0/indexer-core/src/main/java/org/apache/maven/index/creator/JarFileContentsIndexCreator.java#L166]
> . The behaviour of indexer-core with it's JarFileContentsIndexCreator is the
> behaviour I am empirically seeing in the wild with sample
> nexus-maven-repository-index.gz files.
> Of course, one can still pass all the contents in a String whose elements
> were joined with the newline character ahead of time - but at that point it
> makes little sense why a String array needs to be passed as Record's value as
> it will almost always be a String-array of size 1 anyways (on a similar note,
> the documentation states that the `classNames` entry stores a value of type
> java.util.List<String>, but that is incorrect - it is a String[]).
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