Add jdk28-preview module: JDK 28 early-access build, value classes, strict init flag, PEM, JSON incubator

Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Gth99spB1CzQmBFofXmU4Z
2026-09-28 08:48:04 +00:00
parent 57a04dc393
commit c8ff3acf09
15 changed files with 221 additions and 0 deletions
@@ -0,0 +1,24 @@
+# 05-json-incubator (JEP 540): JsonDemo.java on JDK 28
+--- module and API surface:
+jdk.incubator.json@28-ea
+exports jdk.incubator.json
+requires java.base mandated
+  public static jdk.incubator.json.JsonValue parse(java.lang.String);
+  public static jdk.incubator.json.JsonValue parse(char[]);
+  public static java.lang.String toDisplayString(jdk.incubator.json.JsonValue, java.lang.String);
+--- without --add-modules:
+src/JsonDemo.java:1: error: package jdk.incubator.json is not visible
+import jdk.incubator.json.*;
+--- with --add-modules jdk.incubator.json:
+name = Ada
+second language = fr
+age + 1 = 37
+missing key -> Optional.empty
+{
+  "name": "Ada",
+  "langs": [
+    "en",
+    "fr"
+  ],
+  "age": 36
+}