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https://issues.apache.org/jira/browse/DIRMINA-1120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013962#comment-17013962
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Cloudor Pu edited comment on DIRMINA-1120 at 1/13/20 2:11 AM:
--------------------------------------------------------------

In addition, the ProtocolEncoderOutput object stored and shared in session is 
not thread-safe too when multiple threads are checking and saving their auto 
created object in the same session. But this sharing bug is not critical and it 
mitigates the damage made by the overwritten one.


was (Author: cloudor):
In addition, the ProtocolEncoderOutput object stored and shared in session is 
not thread-safe too when multiple threads are checking and saving their auto 
created object in the same session. But this sharing bug is not critical and it 
mitigated the damage made by the overwritten one.

> ProtocolCodecFilter does not support concurrent access
> ------------------------------------------------------
>
>                 Key: DIRMINA-1120
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-1120
>             Project: MINA
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.1.1, 2.1.2, 2.1.3
>            Reporter: Cloudor Pu
>            Priority: Major
>
> In ProtocolCodecFilter#filterWrite method, the same writeRequest might be 
> written more than once and previous encoded message would be overwritten by 
> next ones and cause message lost problems.



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