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https://issues.apache.org/jira/browse/DIRMINA-598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny updated DIRMINA-598:
--------------------------------------

    Fix Version/s: 1.1.8
                   2.0.0-M4

We have to check the proposal, see if it applies to 2.0 too.

> ByteBuffer passed to ProtocolEncoderOutput.write(ByteBuffer) does not get 
> released back to the pool
> ---------------------------------------------------------------------------------------------------
>
>                 Key: DIRMINA-598
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-598
>             Project: MINA
>          Issue Type: Bug
>          Components: Filter
>    Affects Versions: 1.1.7
>            Reporter: Greg Dhuse
>             Fix For: 2.0.0-M4, 1.1.8
>
>
> When pooled ByteBuffers are used in conjunction with a ProtocolCodecFilter, 
> buffers passed to ProtocolEncoderOutput.write() do not get released back to 
> the pool in all circumstances, causing unnecessary memory allocation.  
> The following patch appears to resolve this issue in a simple filter chain, 
> but it should be verified that there is no case where this change would cause 
> a buffer to be released too early.
> Best regards,
>  Greg
> Index: 
> core/src/main/java/org/apache/mina/filter/codec/ProtocolCodecFilter.java
> ===================================================================
> --- core/src/main/java/org/apache/mina/filter/codec/ProtocolCodecFilter.java  
> (revision 657929)
> +++ core/src/main/java/org/apache/mina/filter/codec/ProtocolCodecFilter.java  
> (working copy)
> @@ -186,6 +186,10 @@
>      public void messageSent(NextFilter nextFilter, IoSession session,
>              Object message) throws Exception {
>          if (message instanceof HiddenByteBuffer) {
> +                     // Release buffer originally passed to 
> ProtocolEncoderOutput.write(ByteBuffer)
> +                     // See 
> http://mina.apache.org/report/1.1/apidocs/org/apache/mina/common/ByteBuffer.html
> +                     ((HiddenByteBuffer) message).release();
> +             
>              return;
>          }
>  

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