Enhancement: Update Hazelcast to latest (5.4.x)

[lprimak]

Brief Summary

Hazelcast 5.4 has significant fixes and performance enhancements that affect Payara in particular. Payara should upgrade.

Expected Outcome

Payara uses Hazelcast 5.4

Current Outcome

Payara uses Hazelcast 5.3

Alternatives

N/A

Context

No response

[artur-mal]

We have been planning to update this component for some time now. JIRA id for the given task is FISH-8661.

[CarlosMOGoncalves]

Hello there,

I would just like to point out that Hazelcast announced some changes to their Community Edition support and features and I would like to take this opportunity to inquire you all about the potential impacts that they will have on the Payara Platform.

For example, it is expected that in version 5.5 "Kubernetes Hazelcast Operator and its cluster creation capabilities will no longer be available in the Community Edition".

What are your thoughts about these and others?

Cheers

[Pandrex247]

We're reviewing what we're going to do about Hazelcast.
Hazelcast 5.4 changes the minimum Java version to 17, whereas Payara 6 still has a base of 11, thus causing us problems since we wish to retain compatibility against Jakarta EE 10 using Java 11.

We're looking into how hard it would be to maintain a patched version of 5.4 downgraded back to a base of Java 8 which we could backport security and other important fixes to, though the initial first glance review of this is "quite a lot of work".

Hazelcast 5.5 moving the CP subsystem to Enterprise is why we're looking at doing this to 5.4 rather than 5.5. I wasn't aware they were also looking at moving the Kubernetes operator to Enterprise, but that would be another reason to stay relatively close to the version we're already on.

This is all under investigation and so extremely subject to change: please don't take my word as a promise!