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https://issues.apache.org/jira/browse/SOLR-2410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13003676#comment-13003676
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Dawid Weiss commented on SOLR-2410:
-----------------------------------

Btw. this is exactly the reason Collections declare Object[] toArray() and not 
T[] toArray -- in the latter case the compiler adds casts to the expression's 
argument type and collections can't know their component type after type 
erasure. Eh, C#/.NET is so much more elegant with generics.

> ConcurrentLRUCache can throw class cast exception
> -------------------------------------------------
>
>                 Key: SOLR-2410
>                 URL: https://issues.apache.org/jira/browse/SOLR-2410
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.0
>            Reporter: Yonik Seeley
>             Fix For: 4.0
>
>
> ConcurrentLRUCache throws a class cast exception.

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