pfried commented on pull request #151:
URL: https://github.com/apache/commons-lang/pull/151#issuecomment-704132907


   > Suppose one has a Diffable object where one of the properties is also 
diffable. For example, given a Person object with an address property, it might 
be useful to be able to perform a diff on the Person and identify specific 
differences within the address. You might want the diff result of a Person to 
show that "address.city" is different rather than just the entire address. This 
feature allows for that.
   
   Actually imho this is not true since the Diffbuilder has a Type `<T>` the 
appendable `DiffResult` is also `DiffResult<T>`. If you have a `class Person` 
and a `class Address` this statement is therefore not true? Or am I missing 
something and you can give me an example on how to do this?
   
   


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