Add pem-api module: PEMDecoder/PEMEncoder (JEP 538 preview on JDK 27, JEP 542 final in JDK 28) for JWT keys, TLS, encrypted keys and BouncyCastle migration

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01CifR2BE7PBvRy5hT8TS9oz
2026-10-26 01:50:05 +00:00
parent c3cc57f482
commit 2e25042a68
34 changed files with 895 additions and 0 deletions
@@ -0,0 +1,42 @@
+$ javac RoundTrip.java Fx.java   (no flags)     (27.0.1.0.2+1)
+src/Fx.java:27: error: PEM is a preview API and is disabled by default.
+        if (o instanceof java.security.PEM p) return "PEM(type=" + p.type() + ") - NOT decoded";
+                                      ^
+  (use --enable-preview to enable preview APIs)
+src/RoundTrip.java:10: error: PEMDecoder is a preview API and is disabled by default.
+        PEMDecoder decoder = PEMDecoder.of();
+        ^
+  (use --enable-preview to enable preview APIs)
+src/RoundTrip.java:10: error: PEMDecoder is a preview API and is disabled by default.
+        PEMDecoder decoder = PEMDecoder.of();
+                             ^
+  (use --enable-preview to enable preview APIs)
+src/RoundTrip.java:11: error: PEMEncoder is a preview API and is disabled by default.
+        PEMEncoder encoder = PEMEncoder.of();
+        ^
+  (use --enable-preview to enable preview APIs)
+src/RoundTrip.java:11: error: PEMEncoder is a preview API and is disabled by default.
+        PEMEncoder encoder = PEMEncoder.of();
+                             ^
+  (use --enable-preview to enable preview APIs)
+5 errors
+exit=1
+
+$ java RoundTrip   (compiled with --enable-preview, run without it)     (27.0.1.0.2+1)
+Error: LinkageError occurred while loading main class RoundTrip
+	java.lang.UnsupportedClassVersionError: Preview features are not enabled for RoundTrip (class file version 71.65535). Try running with '--enable-preview'
+
+$ javac --enable-preview --release 27 RoundTrip.java Fx.java
+src/Fx.java:27: warning: [preview] PEM is a preview API and may be removed in a future release.
+        if (o instanceof java.security.PEM p) return "PEM(type=" + p.type() + ") - NOT decoded";
+                                      ^
+src/RoundTrip.java:10: warning: [preview] PEMDecoder is a preview API and may be removed in a future release.
+        PEMDecoder decoder = PEMDecoder.of();
+        ^
+src/RoundTrip.java:10: warning: [preview] PEMDecoder is a preview API and may be removed in a future release.
+        PEMDecoder decoder = PEMDecoder.of();
+                             ^
+src/RoundTrip.java:11: warning: [preview] PEMEncoder is a preview API and may be removed in a future release.
+        PEMEncoder encoder = PEMEncoder.of();
+        ^
+exit=0