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Zhuravskiy Vitaliy commented on LUCENE-5741: -------------------------------------------- Hi, Michael, on 4.3.1 bug still present. Same situation on the 4.8.1 (http://postimg.org/image/zfb2ww6x5/). I wrote: "segmentInfos.indexOf(info) always return -1 because org.apache.lucene.index.SegmentInfos does not have equals method" Please read http://docs.oracle.com/javase/7/docs/api/java/util/List.html#indexOf(java.lang.Object) , indexOf uses equals method of an object. On the screenshoot (http://postimg.org/image/jvtezvqnn/) we have two instance of org.apache.lucene.index.SegmentInfoPerCommit (SegmentCommitInfo on 4.8.1), which has same values, but different for ArrayList, because has not overrided equals method (for example like in the SegmentInfo). Class must have overriden equals method, if you you want ArrayList.indexOf works (ArrayList.indexOf into org.apache.lucene.index.SegmentInfos#indexOf) Screenshoot of debuger on 4.8.1 with 4.3.1 index http://postimg.org/image/zfb2ww6x5/ > IndexWriter.tryDeleteDocument does not work > ------------------------------------------- > > Key: LUCENE-5741 > URL: https://issues.apache.org/jira/browse/LUCENE-5741 > Project: Lucene - Core > Issue Type: Bug > Components: core/index > Affects Versions: 4.3, 4.5, 4.6, 4.7, 4.8, 4.8.1 > Reporter: Zhuravskiy Vitaliy > Assignee: Michael McCandless > Priority: Critical > > I am using "fresh"a and opened reader. > One segement and 3 documents in index. > tryDeleteDocument always return false, i deep into your code, and see follow, > that > segmentInfos.indexOf(info) > always return -1 because org.apache.lucene.index.SegmentInfoPerCommit doesnot > have equals method, see screenshoot for more inforamtion > http://postimg.org/image/jvtezvqnn/ -- This message was sent by Atlassian JIRA (v6.2#6252) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org