Fix #4875: remove JsonNode.fields() (#4877)

release-notes/VERSION

@@ -86,6 +86,7 @@ Versions: 3.x (for earlier see VERSION-2.x)
 #4840: Increase minimum Android SDK required to 34 for Jackson 3.0
 #4865: Add spliterator support in `JsonNode`
  (contributed by @pjfanning)
+#4875: Remove `JsonNode.fields()` from 3.0
 - Remove `MappingJsonFactory`
 - Add context parameter for `TypeSerializer` contextualization (`forProperty()`)
 - Default for `JsonNodeFeature.STRIP_TRAILING_BIGDECIMAL_ZEROES` changed to `false` for 3.0

src/main/java/tools/jackson/databind/JsonNode.java

@@ -1059,30 +1059,14 @@ public Spliterator<JsonNode> valueSpliterator() {
         return values().spliterator();
     }
 
-    /**
-     * NOTE: This method is deprecated, use {@link #properties()} instead.
-     *
-     * @return Iterator that can be used to traverse all key/value pairs for
-     *   object nodes; empty iterator (no contents) for other types
-     *  
-     * @deprecated As of 2.19, replaced by {@link #properties()}
-     */
-    @Deprecated // since 2.19
-    public Iterator<Map.Entry<String, JsonNode>> fields() {
-        return properties().iterator();
-    }
-
     /**
      * Accessor that will return properties of {@code ObjectNode}
      * similar to how {@link Map#entrySet()} works; 
      * for other node types will return empty {@link java.util.Set}.
-     * Replacement for {@link JsonNode#fields()}.
      *
      * @return Set of properties, if this node is an {@code ObjectNode}
      * ({@link JsonNode#isObject()} returns {@code true}); empty
      * {@link java.util.Set} otherwise.
-     *
-     * @since 2.15
      */
     public Set<Map.Entry<String, JsonNode>> properties() {
         return Collections.emptySet();