[jboss-jira] [JBoss JIRA] (JGRP-2443) Merge ObjectMessage and ObjectMessageSerializable

[Bela Ban (Jira)]

Bela Ban created JGRP-2443:
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             Summary: Merge ObjectMessage and ObjectMessageSerializable
                 Key: JGRP-2443
                 URL: https://issues.redhat.com/browse/JGRP-2443
             Project: JGroups
          Issue Type: Enhancement
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 5.0


{{ObjectMessage}} has an {{object}} as payload, {{ObjectMessageSerializable}} inherits this and adds {{serialized_obj}}.

The former has ~32 bytes in memory, the latter 40. 

The goal is not to increase the size of {{ObjectMessage}} to 40.

Solution:
* Create an ObjectWrapper class, taking an object and a serialized_version
* This is used in the merged {{ObjectMessage}} class (size is still ~32 bytes)
* When we have a SizeStreamable object, we set it as payload, otherwise we create an {{ObjectWrapper}} and set it as object.



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