Circular dependency default exclusion strategy required for persistance frameworks

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What steps will reproduce the problem?
1.Any JPA, hibernate or other persistance frameworks pojos include circular 
dependencies
2.serialization to json will fail (infinite loop) though standard 
serialization will happen normally


What is the expected output? What do you see instead?
Putting the serialized instances in a set and checking if they weren't 
already processed will simply resolve the problem

What version of the product are you using? On what operating system?


Please provide any additional information below.

Original issue reported on code.google.com by zhamdi.into on 12 Feb 2010 at 9:13

• Merged into: Support circular references #137