asmhatre/javademos
1
0
Fork 0
Code Actions Activity

Java 27 and 26: runnable demos and captured output for every JEP, plus version lanes

Browse Source 
Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
This commit is contained in:
asmhatre
2026-09-21 15:08:50 +00:00
committed by Claude
co-authored by Claude Sonnet 5
commit f59c1de96d
152 changed files with 5049 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/output/88-zgc-generational.txt
+26
View File
@@ -0,0 +1,26 @@
# -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version : generational ZGC is the only ZGC from Java 24 (JEP 490)
$ java -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version (JDK 21)
[0.004s][info][gc,init] Version: 21.0.12.1+9-LTS (release)
[0.004s][info][gc,init] Using legacy single-generation mode
$ java -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version (JDK 25)
OpenJDK 64-Bit Server VM warning: Ignoring option ZGenerational; support was removed in 24.0
[0.004s][info][gc,init] Version: 25.0.4.1+1-LTS (release)
$ java -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version (JDK 26)
Unrecognized VM option 'ZGenerational'
Error: Could not create the Java Virtual Machine.
$ java -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version (JDK 27)
Unrecognized VM option 'ZGenerational'
Error: Could not create the Java Virtual Machine.
$ java -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version (JDK 23, Corretto image)
OpenJDK 64-Bit Server VM warning: Option ZGenerational was deprecated in version 23.0 and will likely be removed in a future release.
[0.004s][info][gc,init] Version: 23.0.2+7-FR (release)
[0.004s][info][gc,init] Using deprecated non-generational mode
$ java -XX:+UseZGC -XX:-ZGenerational -Xlog:gc+init -version (JDK 24, Corretto image)
OpenJDK 64-Bit Server VM warning: Ignoring option ZGenerational; support was removed in 24.0
[0.005s][info][gc,init] Version: 24.0.2+12-FR (release)