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Posted to issues@karaf.apache.org by "Ioannis Canellos (JIRA)" <ji...@apache.org> on 2011/09/06 09:03:09 UTC
[jira] [Resolved] (KARAF-842) Cellar's hazelcast instance cannot be
reused outside cellar
[ https://issues.apache.org/jira/browse/KARAF-842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ioannis Canellos resolved KARAF-842.
------------------------------------
Resolution: Fixed
Fix Version/s: cellar-2.2.3
cellar-3.0.0
Committed on trunk and branch 2.2.x.
> Cellar's hazelcast instance cannot be reused outside cellar
> -----------------------------------------------------------
>
> Key: KARAF-842
> URL: https://issues.apache.org/jira/browse/KARAF-842
> Project: Karaf
> Issue Type: Bug
> Components: cellar-hazelcast
> Affects Versions: cellar-2.2.2, cellar-2.2.1
> Reporter: Ioannis Canellos
> Assignee: Ioannis Canellos
> Fix For: cellar-3.0.0, cellar-2.2.3
>
>
> It seems that the hazelcast instance that is created by cellar, cannot be reused outside cellar. The root cause is that the cellar-hazelcast bundle is trying to deserialize each object that is added to the grid, in order to pass it to the registered listeners resulting in a ClassNotFoundException.
> I am currently not sure of how to deal with it. Some possible solutions are:
> a) Have bundles that want to reuse the Hazelcast instance be fragments of cellar-hazelcast bundle (don't like that much).
> b) Have bundles that want to reuse the Hazelcast instance create an instance of their own (this is also not very elegant).
> c) Implement inside cellar a combined class loader as described here http://www.osgi.org/blog/2008/08/classy-solutions-to-tricky-proxies.html and have a listenerhook that will add the bundle class loader of each bundle that imports the service.
> d) Some other solution.
> What do you think?
> Here is the discussion on the mailing lists:
> http://karaf.922171.n3.nabble.com/Cellar-And-Hazelcast-Questions-td3184320.html
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