Filter not applied to subresource

Following is my code:
@Path("/parent")
@Test
public class Parent {

@GET
public Response one()

{ ... }

@Path("child")
public Child two(){ return new Child(); }

}

public class Child {

@GET
public Response child(){ ... }

}

/parent invokes the test filter, however /parent/child didnt.

Thanks
#### Affected Versions
[2.22.1]