src/java.base/share/classes/jdk/internal/javac/PreviewFeature.java

*** 65,10 ***
--- 65,13 ---
       */
      public enum Feature {
          // not used, but required for interim javac to not warn.
          VIRTUAL_THREADS,
          FOREIGN,
+         @JEP(number=401, title="Value Classes and Objects", status = "Preview")
+         VALUE_OBJECTS,
+ 
          @JEP(number=459, title="String Templates", status="Second Preview")
          STRING_TEMPLATES,
          @JEP(number=477, title="Implicitly Declared Classes and Instance Main Methods", status="Third Preview")
          IMPLICIT_CLASSES,
          @JEP(number=481, title="Scoped Values", status="Third Preview")