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https://issues.apache.org/jira/browse/SOLR-921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673471#action_12673471
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Noble Paul commented on SOLR-921:
---------------------------------

Hi Hoss, will do , all three

> SolrResourceLoader must cache name vs class
> -------------------------------------------
>
>                 Key: SOLR-921
>                 URL: https://issues.apache.org/jira/browse/SOLR-921
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Noble Paul
>            Assignee: Shalin Shekhar Mangar
>             Fix For: 1.4
>
>         Attachments: SOLR-921.patch, SOLR-921.patch, SOLR-921.patch
>
>
> every class that is loaded through SolrResourceLoader does a Class.forName() 
> and when if it is not found a ClassNotFoundExcepton is thrown
> Then , it looks up with the various packages and finds the right class if the 
> name starts with solr. Considering the fact that we usually use this 
> solr.<classname> format we pay too much of a price for this. After every 
> lookup the result can be cached in a Map<String,Class> and can be shared 
> across all the cores and this Map can be stored at the CoreContainer level

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