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https://issues.apache.org/jira/browse/LUCENE-1636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12762281#action_12762281
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Mark Bennett commented on LUCENE-1636:
--------------------------------------
(trouble posting, forgive if duplicate)
This change also broke the Japanese morphological SEN / Lucene integration code
in lucene-ja. Since Solr 1.4 is based on Lucene 2.9, this will also
effectively break SEN for Solr users who upgrade to 1.4.
I'm not complaining. Reading the above comments, the change was probably the
"right" thing to do. I've contacted the author of lucene-ja, and I hope to
work on a rewrite to address this.
I would be interested in any comments you folks might have about the lucene-ja
code.
Class org.apache.lucene.analysis.ja.POSFilter
Extends org.apache.lucene.analysis.TokenFilter
Offending code in lucene-ja's POSFilter
public POSFilter(TokenStream in, Hashtable posTable) {
super(in);
input = in; // <<==== this is a member field of parent TokenFilter
table = posTable;
}
This is done in several classes.
> TokenFilters with a null value in the constructor fail
> ------------------------------------------------------
>
> Key: LUCENE-1636
> URL: https://issues.apache.org/jira/browse/LUCENE-1636
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 2.9
> Reporter: Wouter Heijke
> Assignee: Michael McCandless
> Fix For: 2.9
>
> Attachments: LUCENE-1636.patch
>
>
> While migrating from 2.4.x to 2.9-dev I found a lot of failing unittests.
> One problem is with TokenFilters that do a super(null) in the constructor.
> I fixed it by changing the constructor to super(new EmptyTokenStream())
> This will cause problems and frustration to others while migrating to 2.9.
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