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https://issues.apache.org/jira/browse/STANBOL-1045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rupert Westenthaler resolved STANBOL-1045.
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Resolution: Fixed
fixed with http://svn.apache.org/r1469024
> SolrCommons need to override the ContextClassLoader when loading Solr
> Analyzers
> -------------------------------------------------------------------------------
>
> Key: STANBOL-1045
> URL: https://issues.apache.org/jira/browse/STANBOL-1045
> Project: Stanbol
> Issue Type: Improvement
> Components: Commons
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
> Priority: Minor
>
> With Solr it is necessary to reset the ContextClassLoader to the Bundle
> ClassLoader when initializing Analyzers. This is because Solr also considers
> the ContextClassLoader for loading those classes and if Stanbol does run
> within an embedded OSGI environment this might result in Solr versions used
> by the host application to leak into OSGI. This usually results in
> ClassCastExceptions.
> While the SolrServerAdapter (commons.solr.core) has done this already with
> the upgrade to Solr 4 this is now also necessary for the BundleActivators
> used by all commons.solr.extra modules. Otherwise those would find
> "META-INF/services/{solr-component}.properties" files via the
> ContextClassLoader pointing to class files of the host application. While
> loading the classes would work the cast to the according interface would end
> with an ClassCastException as the interface is loaded via the Bundle
> ClassLoader.
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