[OAK-10001] Bump up minimal Java version to 11

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.50.0
• Component/s: parent
• Assignee: Julian Reschke
• Reporter: Julian Reschke
• Created: 16/Nov/22 10:45
• Updated: 23/Mar/23 06:01
• Resolved: 27/Jan/23 17:13

Description

Active support for Java 8 ended a few months ago (see https://endoflife.date/java).

Java 11 has been available for four years, and offers various improvements (in particular, it contains extensions that may help in avoiding use of Guava (see OAK-7182)).

(Note that even Java 11 will be out of active support in a few months - so a subsequent update to the next LTS release - Java 17 - is not that far away).

Potential downsides:

• backports to 1.22 might become harder (1.8 will be EOLd next spring anyway).

Issue Links

• blocks: OAK-10007 update Guava related deprecations with 'since' and 'forRemoval' properties
• is blocked by: OAK-10044 Javadoc fixes for JDK 11 compat
• is blocked by: OAK-10062 consolidate and update groovy versions to 2.4.21
• is blocked by: OAK-10066 update groovy dependency to 2.5.20
• relates to: OAK-10092 doc-railroad project fails on Java 11; plexus-component-metadata needs update
• relates to: JCR-4869 Bump up minimal Java version to 11
• relates to: OAK-7182 Make it possible to update Guava
• relates to: OAK-10065 avoid-use of groovy-all artefact
• links to: GitHub Pull Request #823
• links to: GitHub Pull Request #839