[CALCITE-2952] Certify Calcite on JDK 12

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.20.0
• Assignee: Julian Hyde
• Reporter: Julian Hyde
• Created: 25/Mar/19 22:02
• Updated: 24/Jun/19 15:02
• Resolved: 27/May/19 17:21

Description

Certify Calcite on JDK 12. JDK 12 was released on 2019/03/12.

I and - I believe - several other people regularly build Calcite on both JDK 12 and OpenJDK 12, so we should declare that we support it. Tasks:

• Enable Travis on JDK 12 and/or OpenJDK 12
• Add a paragraph to HISTORY.md for 1.20.
• Add JDK 12 to the paragraph in HISTORY.md for release 1.19. I built and tested on JDK 12 and everything was FINE.
• Add JDK 12 to site/_docs/howto.md.
• Wherever howto.md says to use JDK 11 for a particular task, switch to JDK 12.

Issue Links

• relates to: CALCITE-2655 Enable Travis to test against JDK 12