Java: Smart object exploring library

I'm looking for a library to parse an object with arbitrary depth. For example, I got an ExampleDTO object

class ExampleDTO {
    private FirstEntity first;
    // getters/setters omitted
}

class FirstEntity {
    private SecondEntity sndEntity;
    // getters/setters omitted
}

class SecondEntity {
    private List<ThirdEntity> thirdEntityList;
    // getters/setters omitted
}

class ThirdEntity {
    private String string;
    // getters/setters omitted
}

The structure of the object we can describe with a field path: ExampleDTO { first.sndEntity.thirdEntityList.string }, where each element in the path represents a field name. Is there some Java library to explore the object structure regarding to path?