How to apply delta changes of JSON into original object in Jackson / Play 2.0?

The backend receives modification to existing object as a PUT request. The body contains only the changed fields. What would be the best way to apply changes in to the original Java object? Edit: Objects updates are shallow, no deep copy. Original object... 'car' : {'id':'34','brand':'Ford','type':'Pinto','color':'blue','owner':'joe'} Update as PUT /car/34 with body... 'car' : {'color':'red','owner':null} Should result... 'car' : {'id':'34','brand':'Ford','type':'Pinto','color':'red','owner':null}
Without examples, it is difficult to tell...

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