JDK 21 (new LTS) Support

[magicprinc]

Please add JDK 21 support! 🙏

---

The first obstacle:
ClassNotFoundException: jdk.internal.misc.SharedSecrets
in
org.apache.ignite.internal.util.GridUnsafe#javaNioAccessObject

Java 21 new class name: jdk.internal.access.SharedSecrets

[magicprinc]

My JVM ultra options pack

-XX:+UseParallelGC
-XX:+HeapDumpOnOutOfMemoryError
-XX:+UseCompressedOops
-XX:-OmitStackTraceInFastThrow
-Djava.net.preferIPv4Stack=true
-Dfile.encoding=UTF-8
-XX:+DoEscapeAnalysis
-XX:CompileCommand=inline,java/lang/String.charAt
--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
--add-opens=java.management/com.sun.jmx.mbeanserver=ALL-UNNAMED
--add-opens=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED
--add-opens=java.base/sun.reflect.generics.reflectiveObjects=ALL-UNNAMED
--add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED
--add-opens=java.base/java.io=ALL-UNNAMED
--add-opens=java.base/java.nio=ALL-UNNAMED
--add-opens=java.base/java.util=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED
--add-opens=java.base/java.lang=ALL-UNNAMED
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
--add-opens=java.base/java.math=ALL-UNNAMED
--add-opens=java.sql/java.sql=ALL-UNNAMED
--add-opens=java.base/java.net=ALL-UNNAMED

[ivandasch]

Could you please check with these set of 'add-opens'?

--add-opens=java.base/jdk.internal.misc=ALL-UNNAMED 
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED 
--add-opens=java.management/com.sun.jmx.mbeanserver=ALL-UNNAMED 
--add-opens=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED
--add-opens=java.base/sun.reflect.generics.reflectiveObjects=ALL-UNNAMED 
--add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED 
--add-opens=java.base/java.io=ALL-UNNAMED 
--add-opens=java.base/java.nio=ALL-UNNAMED 
--add-opens=java.base/java.util=ALL-UNNAMED 
--add-opens=java.base/java.util.concurrent=ALL-UNNAMED 
--add-opens=java.base/java.util.concurrent.locks=ALL-UNNAMED 
--add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED 
--add-opens=java.base/java.lang=ALL-UNNAMED 
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED 
--add-opens=java.base/java.math=ALL-UNNAMED 
--add-opens=java.sql/java.sql=ALL-UNNAMED 
--add-opens=java.base/java.lang.reflect=ALL-UNNAMED 
--add-opens=java.base/java.time=ALL-UNNAMED 
--add-opens=java.base/java.text=ALL-UNNAMED 
--add-opens=java.management/sun.management=ALL-UNNAMED 
--add-opens java.desktop/java.awt.font=ALL-UNNAMED

[ivandasch]

If this set is applied you should not fall back to SharedSecrets

[ivandasch]

Will be fixed in #10969

[ivandasch]

Fixed in #10969

[apupier]

Do you have information when a release with the Java 21 support will be available?
Are there plans to backport Java 21 support to 2.x?
EDIT: realizing that this repo is for 2.x and for 3.x, i tis in another one https://github.com/apache/ignite-3

[apupier]

release proposal on dev mailing list: https://lists.apache.org/thread/3nqy8chd0xyopvvhk6o19g2z3p10smzb

[magicprinc]

Any news?

There were plans to release in November... 🙏😥

[ptupitsyn]

@magicprinc see the link above, we are working on it.