OCM:The UUID of the collection elements changes on update.
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                 Key: JCR-1784
                 URL: https://issues.apache.org/jira/browse/JCR-1784
             Project: Jackrabbit
          Issue Type: Bug
    Affects Versions: 1.5
            Reporter: Boni Gopalan
             Fix For: 1.5


On ocm.update transaction, the  Current implementation of 
DefaultCollectionConverterImpl recreates the colleciton-element nodes if there 
is no id field specificaiton.  This is completely valid for majority of the 
cases.  But I came across a case where the colleciton element has a uuid field. 
 In this case also what is happening with the current implementation is that it 
drops all the elements from the old collection-elements and recreates the new 
ones.  The major flip side is that now I am left with brand new UUIDs.  I think 
we should address the uniqueness characteristics specified through UUID also 
while mapping colleciton elements.

I have a patch and a TestCase to verify the same.  I have implemented it only 
for the digester.  If people feel the approach is right I will work out an 
annotation based testcase as well.  I do not think it is going to fail even 
with annotations.


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