jira-importer opened a new issue, #683: URL: https://github.com/apache/maven-indexer/issues/683
**[Matthias Bläsing](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=mblaesing)** opened **[MINDEXER-157](https://issues.apache.org/jira/browse/MINDEXER-157?redirect=false)** and commented I investigated a regression introduced into the NetBeans codebase by the update of maven indexer to 6.2.0 (https://github.com/apache/netbeans/issues/4102) It turned out, that maven indexer after loading the index needs to explicitly rebuild the group lists as they are not stored with the index any longer. Rebuilding on demand is not an option for us, so a solution using a cached version was tried. The idea is, that after the index is updated, the current group lists will be dumped into cache files and when the index is loaded from scratch, that cache is used to initialize all groups and root groups. This seemed to work ok, but the results were strange - only the root groups were returned. Debugging showed, that the all groups list was very short (~950 groups for maven central) while the root groups list was very long (~66.000 groups for maven central). The opposite ratio was expected. The issue can be traced into _DefaultIndexUpdater#loadIndexDirectory_ where _IndexingContext#replace_ is called with the with the wrong order or parameters. The declared method: ```java public interface IndexingContext { void replace( Directory directory, Set<String> allGroups, Set<String> rootGroups ) throws IOException; } ``` is called as: ```java private Date loadIndexDirectory( final IndexUpdateRequest updateRequest, final ResourceFetcher fetcher, final boolean merge, final String remoteIndexFile ) throws IOException { // ... updateRequest.getIndexingContext().replace( directory, rootGroups, allGroups ); // ... } ``` The last two parameters need to be reversed. --- **Remote Links:** - [GitHub Pull Request #211 ](https://github.com/apache/maven-indexer/pull/211) - [GitHub Pull Request #4193 ](https://github.com/apache/netbeans/pull/4193) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@maven.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
