[GitHub] [druid] gianm commented on issue #12706: GC Counter is not enabled on JDK 11 and JDK 17

[GitBox <gi...@apache.org>]

gianm commented on issue #12706:
URL: https://github.com/apache/druid/issues/12706#issuecomment-1168260950

   I am using JvmMonitor on Java 11 too, and it works OK with these options:
   
   ```
   --add-exports=java.base/jdk.internal.ref=ALL-UNNAMED
   --add-exports=java.base/jdk.internal.perf=ALL-UNNAMED
   --add-opens=java.base/java.lang=ALL-UNNAMED
   --add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED
   ```
   
   Like @dampcake, I'm not sure which one exactly is making this particular thing work.
   
   I think it'd be good to add them to the bundled jvm.configs. But then we should also develop an ability to select a different jvm.config for different java versions. Or we could also use a single config with `-XX:+IgnoreUnrecognizedVMOptions`.


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