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https://issues.apache.org/jira/browse/ABDERA-46?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12491415
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James M Snell commented on ABDERA-46:
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I don't remember seeing this bug previously. I will explore and get a fix in.
> Memory Leak and Concurency Bug in Factory
> -----------------------------------------
>
> Key: ABDERA-46
> URL: https://issues.apache.org/jira/browse/ABDERA-46
> Project: Abdera
> Issue Type: Bug
> Reporter: Brian McCallister
> Assigned To: James M Snell
>
> Okay, am trying to reconstruct this from memory as I thought we had a filed a
> bug on it months agao when we found it...
> If you use the same Factory from multiple threads it maintains a map of
> extension namespaces. When you create a new element it accesses this map and
> if an addition is going the reader can get caught traversing it forever.
> (HashMap is not thread safe).
> This map also keeps all extensions it ever sees, which can lead to a memory
> leak if you use the default factory a lot -- say, with hundreds of thousands
> of extensions in my case.
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