[jboss-jira] [JBoss JIRA] Resolved: (JBCACHE-1211) Cache marshaller breaks when marshalling more than 32767 of "certain" objects in a single stream

[Manik Surtani (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBCACHE-1211?page=all ]

Manik Surtani resolved JBCACHE-1211.
------------------------------------

    Resolution: Done

> Cache marshaller breaks when marshalling more than 32767 of "certain" objects in a single stream
> ------------------------------------------------------------------------------------------------
>
>                 Key: JBCACHE-1211
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-1211
>             Project: JBoss Cache
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Replication
>    Affects Versions: 2.0.0.GA
>            Reporter: Manik Surtani
>         Assigned To: Manik Surtani
>            Priority: Critical
>             Fix For: 2.1.0.GA
>
>
> This is a nasty.  What started life as an optimisation for certain types of objects in a marshalled stream (Fqn, GlobalTransactio, String and Serializable) has become a major limitation in that a single stream can only hold up to 32767 different (not equal()) instances of such objects.
> Basically the optimisation was, for example, instead of writing "hello" to a stream twice, just write it once and use a reference for all subsequent times.  Unfortunately this reference was encoded as a short, hence the limitation of 32767.
> Fixing this will definitely break wire compatibility with JBoss Cache 2.0.0, although JBC does allow backward compatibility by specifying replication version in your configuration, thanks to the VersionAwareMarshaller.

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