Github user aledsage commented on the pull request:
https://github.com/apache/incubator-brooklyn/pull/872#issuecomment-136129135
Note that we went for handling the class-renames in xstream
deserialization. And in catalog-loading where it has fallen back to
classpath-based loading.
The alternative would have been to transform the persisted state (e.g.
using xslt). However, the classname can appear in many different ways / places
within the xml, which makes it hard to reliably transform. One can't just do a
regex conversion because the classname might have been used as part of a sensor
/ config key name (which has not been changed).
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