Carsten Ziegeler created SLING-2780:
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             Summary: Make ResourceMetadata read-only when delivered to client 
code
                 Key: SLING-2780
                 URL: https://issues.apache.org/jira/browse/SLING-2780
             Project: Sling
          Issue Type: New Feature
          Components: API, ResourceResolver
    Affects Versions: Resource Resolver 1.0.4, API 2.3.0
            Reporter: Carsten Ziegeler
            Assignee: Carsten Ziegeler
             Fix For: API 2.4.0, Resource Resolver 1.1.0


As recently discussed in the mailing list, ResourceMetadata is an object which 
provides additional metadata information about a resource but is not intended 
to be changed by client code.

As ResourceMetadata extends from (Hash)Map it is read/write by default and 
might potentially be changed by client code.
We should update the API docs that this object is read-only and also enforce it 
in our implementation.

It seems so far no one is changing the ResourceMetadata after it has left the 
resource resolver, therefore we can make it read-only after it is returned by 
the resource resolver.

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