[esb-issues] [JBoss JIRA] Assigned: (JBESB-2446) The update to the message context has broken serialisation with older versions

[Kevin Conner (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBESB-2446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kevin Conner reassigned JBESB-2446:
-----------------------------------

    Assignee: Kevin Conner


> The update to the message context has broken serialisation with older versions
> ------------------------------------------------------------------------------
>
>                 Key: JBESB-2446
>                 URL: https://jira.jboss.org/jira/browse/JBESB-2446
>             Project: JBoss ESB
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Rosetta
>    Affects Versions: 4.4 CP2
>            Reporter: Kevin Conner
>            Assignee: Kevin Conner
>             Fix For: 4.4 CP3
>
>
> The message context was previously unused but was modified, by me I must admit, so that we could usefully distinguish between message context and message contents.
> Unfortunately this breaks when an old version of a serialized message is read by the new version.
> The fix is straight forward, add the following into the ContextImpl for the serialized format.
>     
>     /**
>      * Deserialise the object, checking for old versions.
>      * @param ois The object input stream.
>      * @throws IOException For IO exceptions during object deserialisation.
>      * @throws ClassNotFoundException If dependent classes cannot be found.
>      */
>     private void readObject(final ObjectInputStream ois)
>         throws IOException, ClassNotFoundException
>     {
>         ois.defaultReadObject() ;
>         if (context == null)
>         {
>             context = new HashMap<String, Serializable>() ;
>         }
>     }
> The XML variant is correct.

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