Configuration processor does not detect default value defined in parent class

[snicoll]

If a property is defined in a parent class of a @ConfigurationProperties annotated POJO, it is not detected by the annotation processor as it only checks for constant defined in the base class itself.

This affects #2898

[chenglongyan]

@snicoll This issue seems to have been resolved ?

[snicoll]

@chenglongyan I don't think so.