Support JDK 17 for Pulsar 2.11.0 and later

[xuanyangyang]

pulsar2.11.0 use jdk17.When is jdk17 supported?

[bpereto]

there is no dependency on jdk17?
But you are right, jdk-8 is ancient.

I builded the docker image with FROM openjdk:17-slim-bullseye and needed an extra java opts: JAVA_OPTS: "--add-opens java.base/java.lang=ALL-UNNAMED"

with this setup it works fine.

[tisonkun]

Yeah. This issue looks like to ask to bump the JDK version to 17 in this project.

You're welcome to submit a patch for doing so, or wait for other volunteer take it over :D

[falser101]

Yeah. This issue looks like to ask to bump the JDK version to 17 in this project.

You're welcome to submit a patch for doing so, or wait for other volunteer take it over :D

What do I need to do if I want to upgrade?@tisonkun

[onobc]

This issue came up today at the Pulsar community meeting, in the context of the Pulsar Helm issue w/ a related issue (using older Pulsar client and dependencies).

I would like to bring everything up to the latest dependencies:

• Spring 6.1.3
• SpringBoot 3.2.2
• Pulsar 3.1.2

which implies Java 17.

These changes will warrant a "major" version bump. I see the current version is still < 1.0.0.
We can figure out where the changes land, but likely it would be in a 1.0.0.