[jira] Updated: (JCR-1552) Concurrent property modification sometimes doesn't fail

["Stefan Guggisberg (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JCR-1552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Guggisberg updated JCR-1552:
-----------------------------------

          Component/s: jackrabbit-core
        Fix Version/s: 1.5
    Affects Version/s: core 1.4.2

> Concurrent property modification sometimes doesn't fail
> -------------------------------------------------------
>
>                 Key: JCR-1552
>                 URL: https://issues.apache.org/jira/browse/JCR-1552
>             Project: Jackrabbit
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: core 1.4.2
>            Reporter: Thomas Mueller
>             Fix For: 1.5
>
>
> The following test prints "Success":
>        Session s1 = ...
>        Session s2 = ...
>        s1.getRootNode().setProperty("b", "0"); // init with zero
>        s1.getRootNode().setProperty("b", (String) null); // delete
>        s1.save();
>        s1.getRootNode().setProperty("b", "1");
>        s2.getRootNode().setProperty("b", "2");
>        s1.save();
>        s2.save();
>        System.out.println("Success");
> However  if the line marked "... // delete" is commented out, 
> it fails with the following exception:
> javax.jcr.InvalidItemStateException:
> cafebabe-cafe-babe-cafe-babecafebabe/{}b: the item cannot be saved
> because it has been modified externally.
>        at org.apache.jackrabbit.core.ItemImpl.getTransientStates(ItemImpl.java:246)
>        at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:928)
>        at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:849)
> It should fail in all cases. If we decide it shouldn't fail, it needs to be documented.

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