It is suggested that the field "ctDdataValidation" could be renamed as "ctDataValidation" https://github.com/apache/poi/blob/trunk/src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFDataValidation.java#L41 public class XSSFDataValidation implements DataValidation { private CTDataValidation ctDdataValidation; }
Thanks for pointing this out. I used https://github.com/apache/poi/commit/f89528addc51729a438eb5732129b87c2d87b4b9 to tidy this up.
Why REOPEN? Seems to be resolved, if not then please describe why.