[ARROW-101] Fix java warnings emitted by java compiler

• Type: Task
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.1.0
• Component/s: Java
• External issue URL: https://github.com/apache/arrow/issues/15518
• Assignee: Laurent Goujon
• Reporter: Laurent Goujon
• Created: 14/Apr/16 04:40
• Updated: 11/Jan/23 07:07
• Resolved: 01/Aug/16 23:32

Description

Java compiler emits several warnings regarding the use of rawtypes and unclosed resources on a few classes.