[ARROW-7467] [Java] ComplexCopier does incorrect copy for Map nullable info

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.17.0
• Component/s: Java
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23735
• Assignee: Ji Liu
• Reporter: Ji Liu
• Created: 23/Dec/19 12:06
• Updated: 11/Jan/23 07:53
• Resolved: 06/Feb/20 00:39

Description

The MapVector and its 'value' vector are nullable, and its structVector and 'key' vector are non-nullable.

However, the MapVector generated by ComplexCopier has all nullable fields which is not correct.

Issue Links

• links to: GitHub Pull Request #6094