[jira] [Issue Comment Edited] (JXPATH-152) Concurrent access on hashmap of JXPathIntrospector

["Matt Benson (Issue Comment Edited) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JXPATH-152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215899#comment-13215899 ] 

Matt Benson edited comment on JXPATH-152 at 2/24/12 8:57 PM:
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It would seem that synchronizing each {{HashMap#put()}} call against the target map would defend against the worst-case scenarios you suggest.  Thanks for the report!

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Committed revision 1293412.
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      was (Author: mbenson):
    It would seem that synchronizing access to the {{HashMap}}s' {{#put}} calls would defend against the worst-case scenarios you suggest.  Thanks for the report!

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Committed revision 1293412.
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> Concurrent access on hashmap of JXPathIntrospector
> --------------------------------------------------
>
>                 Key: JXPATH-152
>                 URL: https://issues.apache.org/jira/browse/JXPATH-152
>             Project: Commons JXPath
>          Issue Type: Bug
>    Affects Versions: 1.3
>         Environment: Java5, Windows/AIX
>            Reporter: pleutre
>            Assignee: Matt Benson
>            Priority: Minor
>             Fix For: 1.4
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> JXPathIntrospector.registerDynamicClass method can be called in static part of classes. 
> If two classes A & B try to registerDynamicClass in the same time a concurrent access exception can append on hashmap of JXPathIntrospector.
> Replace hashmap by concurrent hashmap or synchronized access to these hashmaps.

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