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From "Stefan Guggisberg (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-2433) NPE when copying nodes with Workspace.copy()
Date Fri, 11 Dec 2009 13:21:18 GMT

    [ https://issues.apache.org/jira/browse/JCR-2433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12789297#action_12789297
] 

Stefan Guggisberg commented on JCR-2433:
----------------------------------------

thanks, no i understand. 

in version 1.6 the declarations of some built-in node types have changed
(actually the declarations have changed from JCR 1.0 to JCR 2.0).

i.e.

jcr:isCheckedOut used to be declared by mix:versionable. 
in jackrabbit 1.6 it is declared by mix:simpleVersionable
and mix:versionable now extends mix:simpleVersionable.


a quick fix for this issue would be to gracefully handle this 
'incompatibility' by guarding against NPE and trying to 
determine/assign the 'correct' definition during the copy
operation.   



> NPE when copying nodes with Workspace.copy()
> --------------------------------------------
>
>                 Key: JCR-2433
>                 URL: https://issues.apache.org/jira/browse/JCR-2433
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 1.6.0
>            Reporter: Sascha Theves
>
> I get a NullpointerException when using Workspace.copy():
> java.lang.NullPointerException
> at org.apache.jackrabbit.core.BatchedItemOperations.copyNodeState(BatchedItemOperations.java:1834)
> at org.apache.jackrabbit.core.BatchedItemOperations.copyNodeState(BatchedItemOperations.java:1806)
> at org.apache.jackrabbit.core.BatchedItemOperations.copyNodeState(BatchedItemOperations.java:1806)
> at org.apache.jackrabbit.core.BatchedItemOperations.copy(BatchedItemOperations.java:423)
> at org.apache.jackrabbit.core.WorkspaceImpl.internalCopy(WorkspaceImpl.java:444)
> at org.apache.jackrabbit.core.WorkspaceImpl.copy(WorkspaceImpl.java:666)
> at xxx.MyClass.myMeth(MyClass.java)
> It seems that it happens not all the time. The error occurs since we use Jackrabbit 1.6.0.
We do not get the error with previous versions. It seems that we only get the error when trying
to copy nodes that were created with Jackrabbit 1.4 and copied with Jackrabbit 1.6.

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