src/java.base/share/classes/java/time/zone/ZoneRules.java

*** 301,311 ****
  
      /**
       * Creates an instance of ZoneRules that has fixed zone rules.
       *
       * @param offset  the offset this fixed zone rules is based on, not null
-      * @return the zone rules, not null
       * @see #isFixedOffset()
       */
      private ZoneRules(ZoneOffset offset) {
          this.standardOffsets = new ZoneOffset[1];
          this.standardOffsets[0] = offset;
--- 301,310 ----
*** 968,978 ****
       * daylight saving time. The list will also be empty if the transition rules are unknown.
       *
       * @return an immutable list of transition rules, not null
       */
      public List<ZoneOffsetTransitionRule> getTransitionRules() {
!         return Collections.unmodifiableList(Arrays.asList(lastRules));
      }
  
      /**
       * Checks if this set of rules equals another.
       * <p>
--- 967,977 ----
       * daylight saving time. The list will also be empty if the transition rules are unknown.
       *
       * @return an immutable list of transition rules, not null
       */
      public List<ZoneOffsetTransitionRule> getTransitionRules() {
!         return List.of(lastRules);
      }
  
      /**
       * Checks if this set of rules equals another.
       * <p>