public static <T1> String toString(final T1 value,
                                       final Function<T1, Object> getter) {
        return toStringOrElse(value, getter, null);
    }
@return The result of calling {@link Object#toString()} on value
or an empty string if value is null.
stroom-util-shared/src/main/java/stroom/util/shared/NullSafe.java