Oracle Java 20

[theronic]

nREPL server started on port 64179 on host localhost - nrepl://localhost:64179
(def q (q/queue ::my-queue))
Reflection warning, qbits/tape/tailer.clj:88:21 - call to static method sleep on java.lang.Thread can't be resolved (argument types: java.lang.Object).
Reflection warning, qbits/tape/tailer.clj:102:18 - call to static method sleep on java.lang.Thread can't be resolved (argument types: java.lang.Object).
=> nil
Execution error (NoSuchMethodException) at java.lang.Class/getDeclaredMethod (Class.java:2772).
sun.nio.ch.FileChannelImpl.unmap0(long,long)
(def a (q/appender q))
Execution error (AssertionError) at cues.queue/appender (queue.clj:211).
Assert failed: (queue? queue)

Same JVM opts as for Java 17. Same code and deps.edn works on Amazon Corretto Java 17.

[zalky]

Hi Petrus,

So as mentioned in the installation notes, Chronicle Queue only targets Java LTS releases, which specifically means 8, 11, and 17. The next LTS release they support will be 21.

There are reports that 18 works fine, but that 19 does not. I suspect therefore 20 will not either. You can read more about that here.

I'm sorry, I wish I had a more helpful answer for you 😕. I will mark this as closed for now, barring any objections.