question: public < AnnotationType extends Annotation > void register ( FieldBinder < AnnotationType > fieldBinder ) { Set < AnnotatedField < AnnotationType > > annotatedFields = AnnotatedFields . get ( fieldBinder . getAnnotationClass ( ) , annotatedType ) ; if ( ! annotatedFields . isEmpty ( ) ) { objectBinders . add ( new AnnotatedFieldBinder < > ( fieldBinder , annotatedFields ) ) ; } }
target:  Update the cache with this binder