private static boolean checkPropagateNullAnnotation(PojoProperty<?> property) {
            final Optional<String> propagateNullValue = property.getAnnotation(PropagateNull.class).map(PropagateNull::value);
            propagateNullValue.ifPresent(v -> {
                if (!v.isEmpty()) {
                    throw new IllegalArgumentException(format("@PropagateNull does not support a value (%s) on a property (%s)", v, property.getName()));
                }
            });

            return propagateNullValue.isPresent();
        }
This class is the future home of BeanMapper functionality.
core/src/main/java/org/jdbi/v3/core/mapper/reflect/internal/PojoMapper.java