#63 Unable to classify GarbageCollectorMXBean [G1 Concurrent GC]

[xiyz]

When starting app, I receive a warning message :
Unable to classify GarbageCollectorMXBean [G1 Concurrent GC]

But, The warning message disappear when I using jdk17

log part:

org.rzo.yajsw.app.WrapperJVMMain
posix_spawn pid 93688
post start false 2338006183287019582$1761266167313
started process with pid 93688
Unable to classify GarbageCollectorMXBean [G1 Concurrent GC]

jvm options

-Djava.awt.headless=true -Djdk.io.File.allowDeleteReadOnlyFiles=true
-Dsun.io.useCanonCaches=false
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
--add-opens=java.base/java.lang=ALL-UNNAMED
--add-opens=java.base/java.lang.reflect=ALL-UNNAMED
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
--add-opens=java.base/java.util=ALL-UNNAMED
--add-opens=java.base/java.text=ALL-UNNAMED
--add-opens=java.desktop/java.awt.font=ALL-UNNAMED
--add-modules=java.se --add-exports=java.base/jdk.internal.ref=ALL-UNNAMED
--add-opens=java.management/sun.management=ALL-UNNAMED
--add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED
--add-opens=java.base/sun.nio.fs=ALL-UNNAMED
-Xss1024k
-Xmx8015m

openjdk version "21.0.8" 2025-07-15 LTS
OpenJDK Runtime Environment Corretto-21.0.8.9.1 (build 21.0.8+9-LTS)
OpenJDK 64-Bit Server VM Corretto-21.0.8.9.1 (build 21.0.8+9-LTS, mixed mode, sharing)

YAJSW: yajsw-stable-13.18
OS: ubuntu 24.04