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

Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
2026-09-21 15:08:50 +00:00
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+$ java --add-modules jdk.incubator.vector VectorDemo     (JDK 27)
+java.version      = 27
+preferred species = Species[float, 16, S_512_BIT]  (16 float lanes, machine dependent)
+scalar dot        = 749999.6
+vector dot        = 749999.6
+CHECK ok   : vector and scalar dot products agree to within 0.1%
+exit=0