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https://issues.apache.org/jira/browse/CAY-2748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17564556#comment-17564556
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Andrus Adamchik commented on CAY-2748:
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I am +1 on the idea to make cached lists immutable. Making a mutable copy every
time you retrieve something from the cache is just wrong. Wrapping the list in
an immutable list is probably the way to go.
> Mutating the list returned from the local query cache changes the cache
> -----------------------------------------------------------------------
>
> Key: CAY-2748
> URL: https://issues.apache.org/jira/browse/CAY-2748
> Project: Cayenne
> Issue Type: Bug
> Components: Core Library
> Affects Versions: 4.1.1, 4.2.RC1, 4.3.M1
> Reporter: John Huss
> Assignee: John Huss
> Priority: Minor
> Fix For: 4.3.M1
>
> Original Estimate: 4h
> Time Spent: 10m
> Remaining Estimate: 3h 50m
>
> If you perform a query that populates the local query cache and then mutate
> the returned list (by adding an object), this mutation will persist inside
> the local query cache so that subsequent queries that hit the local query
> cache will incorrectly include this mutation.
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