Hot Reloading on GraalVM

Question

I've recently upgraded from OpenJDK 8 to GraalVM 20.1.0 (OpenJDK 11.0.7). Does anyone have any ideas how to implement hot class reloading (or at least web asset redeployment).

• Spring-Boot-Devtools doesn't pick up the changes.
• HotSpotAgent (DCEVM) has a JDK11 versio that you can replace your JVM with, but it's not GraalVM (and won't have the Polyglot features)
• JRebel (which I have a license for, doesn't support GraalVM)

Is that it? Surely not...

Answer 1

JRebel does support GraalVM, you can see the press release here: https://www.jrebel.com/blog/jrebel-2020-2-adds-support-java-14

If you are struggling with setting up JRebel with your GraalVM you should email them at support@jrebel.com and they can help you out.