src/java.base/share/classes/java/time/LocalDateTime.java

@@ -131,10 +131,11 @@
   * This class is immutable and thread-safe.
   *
   * @since 1.8
   */
  @jdk.internal.ValueBased
+ @jdk.internal.MigratedValueClass
  public final class LocalDateTime
          implements Temporal, TemporalAdjuster, ChronoLocalDateTime<LocalDate>, Serializable {
  
      /**
       * The minimum supported {@code LocalDateTime}, '-999999999-01-01T00:00:00'.