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
commit f59c1de96d
152 changed files with 5049 additions and 0 deletions
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+$ javac --enable-preview --release 26 Pem26Style.java      (JDK 26)
+exit=0
+
+$ javac --enable-preview --release 27 Pem26Style.java      (JDK 27)
+Pem26Style.java:1: error: cannot find symbol
+import java.security.DEREncodable;
+                    ^
+  symbol:   class DEREncodable
+  location: package java.security
+Pem26Style.java:20: error: cannot find symbol
+        PEMDecoder viaProvider = PEMDecoder.of().withFactory(provider);         // 2
+                                                ^
+  symbol:   method withFactory(Provider)
+  location: class PEMDecoder
+Pem26Style.java:22: error: incompatible types: byte[] cannot be converted to String
+            String base64Text = pem.content();                                  // 3
+                                           ^
+3 errors
+exit=1