https://github.com/robert-bor/CSVeed/blob/31d23f728e7a4b09aa91d5c443c3fc8f5067d428/src/main/java/org/csveed/bean/conversion/BeanWrapper.java#L39
This choice appears unreasonable from the user's perspective: it is not possible to customize the behavior as the converter does not get called. At the same time, any previously initialized value gets overwritten.
Please either do not touch the existing value (from field initialization) or offer some hook into this process such that null and empty values can be mapped to some reasonable default.