[ARROW-8305] [Java] ExtensionTypeVector should make sure underlyingVector not null

• 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/24496
• Assignee: Ji Liu
• Reporter: Ji Liu
• Created: 01/Apr/20 08:26
• Updated: 11/Jan/23 07:59
• Resolved: 03/Apr/20 12:30

Description

In ExtensionTypeVector seems not check nullability for underlyingVector, and it will throw exception when it is null in some api like accept/reset/getField etc.

it's better to do null check when create ExtensionTypeVector rather than when really use it.

Issue Links

• links to: GitHub Pull Request #6798