Commits
tianchen authored and Pindikura Ravindra committed 5aa5de45e91
ARROW-6289: [Java] Add empty() in UnionVector to create instance Related to [ARROW-6289](https://issues.apache.org/jira/browse/ARROW-6289). Currently complex type vectors all have empty() API to create instance except UnionVector. Closes #5115 from tianchen92/ARROW-6289 and squashes the following commits: 9523146ac <tianchen92> Merge branch 'master' into ARROW-6289 1617b289e <tianchen> ARROW-6289: Add empty() in UnionVector to create instance Lead-authored-by: tianchen <niki.lj@alibaba-inc.com> Co-authored-by: tianchen92 <niki.lj@alibaba-inc.com> Signed-off-by: Pindikura Ravindra <ravindra@dremio.com>