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https://issues.apache.org/jira/browse/DIRMINA-1161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17486425#comment-17486425
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Jonathan Valliere commented on DIRMINA-1161:
--------------------------------------------
The ProtocolDecoder system is not concurrent and does not support one
Session operating concurrent via ThreadExecutors.
This has been resolved in an upcoming release.
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> Accessing the session buffer of multiple decoders
> -------------------------------------------------
>
> Key: DIRMINA-1161
> URL: https://issues.apache.org/jira/browse/DIRMINA-1161
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.22, 2.1.4
> Environment: Ubuntu 16.04.7 LTS
> Open JDK 11.0.10
> Mina 2.0.22
> Reporter: Pavel Garin
> Priority: Major
> Fix For: 2.0.23, 2.1.5
>
>
> As of Mina 2.0.17, the line of code in CumulativeProtocolDecoder
>
> {code:java}
> private final AttributeKey BUFFER = new AttributeKey(getClass(), "buffer");
> {code}
> has been replaced with line
> {code:java}
> private static final AttributeKey BUFFER = new
> AttributeKey(CumulativeProtocolDecoder.class, "buffer");{code}
> When using an architecture where multiple decoders inherited from
> CumulativeProtocolDecoder are used, the decoders corrupt each other's data.
> The key for the attribute in line
> {code:java}
> IoBuffer buf = (IoBuffer) session.getAttribute(BUFFER);{code}
> has become the same for all decoders.
>
>
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