Github user aledsage commented on the pull request:
https://github.com/apache/incubator-brooklyn/pull/583#issuecomment-92154657
@ahgittin it was calling the REST API in a mule flow, using
`brooklyn.rest.client.BrooklynApi` to generate the required http calls, and to
deserialize the results into Java pojos. The call returned `EntitySummary`. The
mule flow then tried to serialise the returned Java object (I think for use in
a subsequent step of the flow), which failed.
I agree that all of these classes should be `Serializable`. I've no
objection with making this one Serializable in this PR, and then we can address
the others in a subsequent PR.
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