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https://issues.apache.org/jira/browse/DIRMINA-1120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013955#comment-17013955
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Cloudor Pu commented on DIRMINA-1120:
-------------------------------------
It's true I should make sure that the filters I'm using are thread-safe and I
found the ProtocolCodecFilter was thread-safe before version 2.1.1 but some new
designs are broken since v2.1.1. The same write request object are passed to
the next filter with different messages in queue by mistake in the filterWrite
method. It makes the previous messages might be overwritten by next messages
and the next messages' buffer might be used up when they come to the
IoProcessor again.
> 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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