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https://issues.apache.org/jira/browse/COCOON-2152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12546223
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Ard Schrijvers commented on COCOON-2152:
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Since you found the problem my comment from COCOON-2146 can be discarded. I
merely stated there that for < 2.1.8 cocoon versions it used to work. Since
we have our own implementation for it, I wasn't aware that it actually changed.
Anyway, good to know you found the problem!
> EventAware cache does not persist correctly when using the
> StoreEventRegistryImpl
> ---------------------------------------------------------------------------------
>
> Key: COCOON-2152
> URL: https://issues.apache.org/jira/browse/COCOON-2152
> Project: Cocoon
> Issue Type: Bug
> Components: Blocks: Event Cache
> Affects Versions: 2.1.10, 2.1.11-dev (Current SVN), 2.2-dev (Current SVN)
> Reporter: Ellis Pritchard
>
> When using the DefaultEventRegistryImpl the functionality now works as
> expected (events are persisted and restored) after the patch applied in
> COCOON-2146.
> However, there's still a problem with StoreEventRegistryImpl.
> The behaviour is that it doesn't seem to actually write/restore any event
> entries: the maps in the EventRegistryDataWrapper are empty (but not null)
> after restart, even though the actual cache entry (key EVENTREGWRAPPER) was
> found in the Store, and the entries were present when persist() was called.
> The effect of this is to correctly restore the cached entries, but discard
> all the events, which means that event-flushes don't work any more, which is
> not a good thing.
> I've tracked this down to the fact that
> AbstractDoubleMapEventRepository#dispose() which performs the persist(), then
> immediately clear()s the maps, WHICH HAVEN'T YET BEEN WRITTEN TO DISK BY
> EHCACHE SHUTDOWN!
> This code has probably never worked :)
> Patches to follow; I propose modifying dispose() to null the map fields, but
> not perform clear() on them.
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