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

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Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
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asmhatre
2026-09-21 15:08:50 +00:00
committed by Claude
co-authored by Claude Sonnet 5
commit f59c1de96d
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docs/output/83-finalization.txt
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# Is finalization removed by default in 25? (JEP 421 deprecated it for removal in 18)
$ java FinalizerDefault (JDK 21)
java.version = 21.0.12.1
finalizer ran: true
$ java --finalization=disabled FinalizerDefault (JDK 21)
java.version = 21.0.12.1
finalizer ran: false
$ java FinalizerDefault (JDK 25)
java.version = 25.0.4.1
finalizer ran: true
$ java --finalization=disabled FinalizerDefault (JDK 25)
java.version = 25.0.4.1
finalizer ran: false
$ java FinalizerDefault (JDK 26)
java.version = 26.0.2.1
finalizer ran: true
$ java --finalization=disabled FinalizerDefault (JDK 26)
java.version = 26.0.2.1
finalizer ran: false
$ java FinalizerDefault (JDK 27)
java.version = 27
finalizer ran: true
$ java --finalization=disabled FinalizerDefault (JDK 27)
java.version = 27
finalizer ran: false