I’ve been able to use copilot4eclipse, and when the status is “Ready”, it works fine.
Another user on my team, using the same version of Eclipse I am (2024-03), is able to get to status “Ready”, but none of the copilot functionality is working. He gets a NPE when he attempts just about anything with copilot. I would paste the stack trace, but apparently “wordfence” thinks there is something unsafe in it, so I can’t post it.