[infinispan-issues] [JBoss JIRA] (ISPN-2721) Issue with conditional operations and verisioning

[Mircea Markus (JIRA)]

Mircea Markus created ISPN-2721:
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             Summary: Issue with conditional operations and verisioning
                 Key: ISPN-2721
                 URL: https://issues.jboss.org/browse/ISPN-2721
             Project: Infinispan
          Issue Type: Bug
            Reporter: Mircea Markus
            Assignee: Galder Zamarreño
         Attachments: SimpleConditionalOperationsWriteSkewTest.java

The problem:
- repeatable read cache with write skew check enabled 
- a conditional operation (e.g. replace) executes and is not successful (e.g. because the value doesn't exist)
- during the successful operation the entry is written to the container with a null version. (i.e. the previous version is erased). That is well bad!

Suggested solution:
- for such entries that were not modified (isChanged==false) the value should not be re-written to the container OR


Attached is a unit test capturing the problem.

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