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https://issues.apache.org/jira/browse/JENA-1301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15897257#comment-15897257
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Andy Seaborne commented on JENA-1301:
-------------------------------------
I discovered, while working on JENA-1306, that the existing sol4j dependency
causes a class incompatibility problem with Apache HttpClient.
RDFParser touches HttpOp and the default HttpClient.
Roughly, if sol4j is a dependency (i.e. Fuseki2), calling HttpOp at all to set
up the default HttpClient crashes out on a missing class between Http Client/
Http Components Core. I can't see why it is happening, though possibly a mix of
old and new style APIs of HttpClient tickles an HttpClient/HttpComponents core
problem.
This JIRA solves that for me!
> Drop Solr support from jena-text and jena-spatial
> -------------------------------------------------
>
> Key: JENA-1301
> URL: https://issues.apache.org/jira/browse/JENA-1301
> Project: Apache Jena
> Issue Type: Wish
> Components: Text
> Affects Versions: Jena 3.2.0
> Reporter: Osma Suominen
> Assignee: Osma Suominen
>
> As discussed on the dev list, I propose dropping Solr support from jena-text
> and jena-spatial. Reasons:
> # It is not evident how to run it from the documentation.
> # There are no unit tests specific to Solr so whether it works cannot be
> easily verified over time.
> # It hasn't gained any of the features added to jena-text in recent years
> (e.g. multilingual indexing, stored literal values, various special analyzers)
> # The upgrade to Lucene 6 (JENA-1250) would probably break it further (since
> Solr 4.9.1 that we use depends on Lucene 4.9.1), though due to reasons 1 and
> 2 above I can't tell.
> # Elasticsearch support for jena-text is being developed by Anuj Kumar,
> offering the same kind of external text index functionality that the Solr
> support used to offer.
> # It's not fun to look at (and in effect have to maintain) code that you
> don't know if anyone is using or whether it's even working at all. I haven't
> heard from any users of jena-text/Solr in a long time. The [most recent
> exchange|http://comments.gmane.org/gmane.comp.apache.jena.user/3369] I could
> find on the users list was in 2013, and it ended up unclear of whether the
> user ever got it working. Okay there was [another
> thread|http://thread.gmane.org/gmane.comp.apache.jena.user/8892] in April/May
> 2016 where Solr was apparently being used, but the discussion was about other
> issues.
> I volunteer to do the actual cleaning up if we get agreement on this.
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