Upgrade LMAX Disruptor to version 4.0.0

[tomerarazy]

No description provided.

[vy]

@tomerarazy, I don't think this will work. See #1829 and LOG4J2-3595. We would appreciate it if you can submit a PR fixing the issue via the way described in LOG4J2-3595.

[tomerarazy]

@tomerarazy, I don't think this will work. See #1829 and LOG4J2-3595. We would appreciate it if you can submit a PR fixing the issue via the way described in LOG4J2-3595.

If I understand the issue is backward compatibility with older Java versions, I don't mind taking a shot at this but I'm not familiar with the log4j (other than as a user) so I don't even know where to start looking on how different Java versions affect which code we're loading, can you please provide some pointers to where I can start looking?

[ppkarwasz]

I would prefer to use the trick I described in #1856.

In Disruptor 4.x two things changed:

• EventHandler has new default methods that come from its previous sub-interfaces,
• some sub-interfaces of EventHandler disappeared.

We can easily work with this, so that:

• our code compiles with Disruptor 3.x,
• users can use both Disruptor 3.x and Disruptor 4.x at runtime.

The details are in #1856.

[jvz]

I'm going to go ahead and apply this idea to main since that has a baseline requirement of Java 11 already.

[jvz]

Straightforward approach in main: 9dcb10b