[jboss-dev-forums] [Design of JBossCache] - Re: Serialization Compatibility Tests

[manik.surtani@jboss.com]

Ok, we have a problem with these classes:


  |  org.jboss.cache.OptimisticTreeNode
  |  org.jboss.cache.optimistic.DefaultDataVersion
  |  org.jboss.cache.optimistic.FqnComparator 
  | 

They currently (1.4.1.CR1) have svuid fields set to be compatible with 1.4.0, which is not compatible with 1.3.0.  If I change these to be compatible with 1.3.0, it will break compat with 1.4.0, which I think is more important.  

At the end of the day though, minor version updates are allowed to break wire-level compat, as long as the API is not broken.  So 1.3.0 -> 1.4.0 causing a serialization error should be ok, I suppose?  Not ideal, and this should be minimised as far as possible, but I can't see a way around this now that this is out in 1.4.0.

At least having a test suite like this will mean this shouldn't happen in future.
 

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