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https://issues.apache.org/jira/browse/DIRMINA-357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny closed DIRMINA-357.
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> ConcurrentHashMap.put(key, null) throws an NPE effects BaseIOSession
> attachments/attributes
> -------------------------------------------------------------------------------------------
>
> Key: DIRMINA-357
> URL: https://issues.apache.org/jira/browse/DIRMINA-357
> Project: MINA
> Issue Type: Bug
> Components: Core, Example
> Affects Versions: 1.1.0
> Environment: linux, jdk 1.5
> Reporter: keith mcneill
> Assignee: Trustin Lee
>
> the pattern to remove an attachment on an IOSession is to do a:
> setAttachment(null)
> In 1.1 this throws a NPE because the backing map of ConcurrentHashMap throws
> an exception when one tries to put a null.
> This is a problem for both attachments & attributes.
> Can fix by:
> - add a removeAttachement() call
> - special case nulls in setAttachement & setAttribute
> - change the backing map.
> This causes a problem in the proxy example where the client doesn't get
> responses back from the server.
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