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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/13-jol-record-failure.txt
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# WARNING: Unable to attach Serviceability Agent. sun.jvm.hotspot.runtime.VM.isCompressedKlassPointersEnabled()
Exception in thread "main" java.lang.RuntimeException: Cannot get the field offset, try with -Djol.magicFieldOffset=true
at org.openjdk.jol.vm.HotspotUnsafe.fieldOffset(HotspotUnsafe.java:533)
at org.openjdk.jol.layouters.CurrentLayouter.layout(CurrentLayouter.java:70)
at org.openjdk.jol.info.ClassLayout.parseClass(ClassLayout.java:72)
at org.openjdk.jol.info.ClassLayout.parseClass(ClassLayout.java:56)
at RecordProbe.main(RecordProbe.java:12)
Caused by: java.lang.UnsupportedOperationException: can't get field offset on a record class: private final int RecordProbe$Coordinates.lat
at jdk.unsupported/sun.misc.Unsafe.objectFieldOffset(Unsafe.java:903)
at org.openjdk.jol.vm.HotspotUnsafe.fieldOffset(HotspotUnsafe.java:526)
... 4 more