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Date: Fri, 17 Mar 2006 22:44:03 +0000 (GMT)
From: "Jukka Zitting (JIRA)" <jira@apache.org>
To: jackrabbit-dev@incubator.apache.org
Subject: [jira] Commented: (JCR-352) Upgrade to Lucene 1.9.1
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    [ http://issues.apache.org/jira/browse/JCR-352?page=comments#action_12370902 ] 

Jukka Zitting commented on JCR-352:
-----------------------------------

I tried changing the visibility of the difference() method, which did solve the compile problem, but now I get a ClassCastException from org.apache.lucene.store.Directory.createFile() when the repository is being initialized. This problem can be reconstructed like this after placing lucene/jars/lucene-1.9.1.jar in the local maven repository:

    $ svn export http://svn.apache.org/repos/asf/incubator/jackrabbit/branches/1.0/jackrabbit
    $ cd jackrabbit
    $ perl -i -pe 's/1.4.3/1.9.1/' project.xml
    $ perl -i -pe 's/protected float difference/public float difference/' \
      src/main/java/org/apache/jackrabbit/core/query/lucene/WildcardTermEnum.java
    $ maven test

This seems to have something to do with the "this method should be abstract" notice in the Lucene Directory.createOutput() method. The FSDirectory class in Jackrabbit doesn't seem to play well with the modified Directory implementation in Lucene 1.9.1.

If there is a similar simple and non-intrusive fix for this problem, then I can have the change included in 1.0, otherwise not. In any case I am going to keep Lucene 1.4.3 as the official dependency in Jackrabbit 1.0. A possible fix would be there just to help people deploy Jackrabbit 1.0 with Lucene 1.9.1.


> Upgrade to Lucene 1.9.1
> -----------------------
>
>          Key: JCR-352
>          URL: http://issues.apache.org/jira/browse/JCR-352
>      Project: Jackrabbit
>         Type: Improvement
>     Versions: 1.1, 1.0.1, 1.0
>  Environment: All
>     Reporter: Michael Young
>     Assignee: Jukka Zitting

>
> We would like to upgrade to Lucene 1.9.1. There are jar conflicts when integrating with other projects such as Liferay Portal --  which uses v 1.9.1.

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