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Weird behaviour with json builder within a mixin - is this a bug ?  RSS feed

william Woodman
Posts: 12
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weird thing - i was mucking about with a mixin class - where i was adding bahaviour to persist a class into mongoDB - i'm using groovy 2.1

i define a simple test class like this

this all works as expected and the bldr generates the right string

my persistence mixin looks like this at the mo

when i run the code and use the first form and pass 'this' which is an instance of MyClass as this is a mixin - then i get am empty Json string - not the right answer - but the other forms work

then out of perversity - if i change the class definition to add Cloneable like this

- i dont really want to have to have the object to save to have to to implement Cloneable. so why does the first form - new JsonBuilder (this) return me an {} json string - but the second form - new JsonBuilder(this.clone()) works just fine - very weird - has any one got any ideas as to why its doing this

within the mixin - this is an instance of MyClass as expected - here is the trace of the working cloneable version - and as you can see the last line bldr: is the correct form

here is the same trace using removing the Cloneable and just passing this to the builder in the mixin - i'm using groovy 2.1

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