[gatein-dev] New field on node type gtn:visible - how to migrate the data?

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 All, I'm sorry if the solution is obvious, but I couldn't find anything that would give me an appropriate solution for this. Basically, I have a task that involves adding a new property to nodes [1]. However, when I start GateIn with data generated by an instance without the patch, I get some exceptions related to the fact that the new field is not present on the data storage. Naively, I would expect the JCR to automatically add this new field to the nodes that don't have it yet (as it would be trivial to just create this field if it's not present), but it seems it's not the case. So, I checked the JCR documentation, and there doesn't seems to be anything related to this scenario, except perhaps for section 1.9.5.3 (Changing or removing existing PropertyDefinition or child NodeDefinition) [2] It seems to me that this is a change on a running system, not a "migration" scenario. So, the question is: what is the proper way to add a new property to a node without having problems with the old data? 1 - https://github.com/jpkrohling/gatein-portal/commit/7627fef1ad6f484c29c8eb... 2 - http://docs.jboss.org/exojcr/1.15.7-GA/developer/en-US/html_single/#JCR.N... Thanks! Juca.