[
https://issues.apache.org/jira/browse/JCR-1848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645427#action_12645427
]
Stefan Guggisberg commented on JCR-1848:
----------------------------------------
are you sharing the same session instance among multiple threads? that would
explain the ConcurrentModificationException.
please note that javax.jcr.Session instances are not thread-safe. if you still
want to share Session instances you have to take
care of the required synchronization.
if you're absolutely positive that Session's are not shared among multiple
threads please provide a simple test case that
reproduces the issue.
> ConcurrentModificationException in SessionItemStateManager when multiple
> updates happening
> ------------------------------------------------------------------------------------------
>
> Key: JCR-1848
> URL: https://issues.apache.org/jira/browse/JCR-1848
> Project: Jackrabbit
> Issue Type: Bug
> Components: jackrabbit-core
> Affects Versions: core 1.4.6
> Reporter: Chris Wilkes
>
> I'll post a trimmed down version of how I can get this error to be thrown. I
> bring this up as the code in SessionItemStateManager explicitly checks for a
> ItemNotFoundException so it looks like there was some thought put in to what
> happens if the underlying data changes.
> java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$ValueIterator.next(HashMap.java:822)
> at
> java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
> at
> org.apache.jackrabbit.core.state.SessionItemStateManager.getDescendantTransientItemStates(SessionItemStateManager.java:405)
> at
> org.apache.jackrabbit.core.ItemImpl.getTransientStates(ItemImpl.java:317)
> at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1080)
> at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:897)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
