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https://issues.apache.org/jira/browse/UIMA-1227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12649477#action_12649477
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Marshall Schor commented on UIMA-1227:
--------------------------------------

If it was an issue, instead of returning the whole type system in some binary 
format, we could compute a hashcode for the type system on both sides, and send 
that over for comparison.

> Help users debug binary CAS serialization problems
> --------------------------------------------------
>
>                 Key: UIMA-1227
>                 URL: https://issues.apache.org/jira/browse/UIMA-1227
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Async Scaleout
>            Reporter: Eddie Epstein
>
> In order to use binary CAS serialization for remote services, both client and 
> service must have identical type systems. If not the same, binary 
> deserialization is likely to throw exceptions. The service request handler 
> should catch these exceptions when using binary deserialization and add 
> message suggesting a likely cause of the problem: unequal type systems.

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