Preserve order of @JsonAnySetter creator property arguments

src/main/java/com/fasterxml/jackson/databind/deser/SettableAnyProperty.java

@@ -538,7 +538,7 @@ protected void _set(Object instance, Object propName, Object value)
         public int getParameterIndex() { return _parameterIndex; }
 
         @Override
-        public Object createParameterObject() { return new HashMap<>(); }
+        public Object createParameterObject() { return new LinkedHashMap<>(); }
 
     }
 

src/main/java/com/fasterxml/jackson/databind/deser/impl/PropertyValueBuffer.java

@@ -237,21 +237,34 @@ public Object[] getParameters(SettableBeanProperty[] props)
     private Object _createAndSetAnySetterValue() throws JsonMappingException
     {
         Object anySetterParameterObject = _anyParamSetter.createParameterObject();
-        for (PropertyValue pv = _anyParamBuffered; pv != null; pv = pv.next) {
-            try {
-                pv.setValue(anySetterParameterObject);
-
-            // Since one of callers only exposes JsonMappingException, but pv.setValue()
-            // nominally leaks IOException, need to do this unfortunate conversion
-            } catch (JsonMappingException e) {
-                throw e;
-            } catch (IOException e) {
-                throw JsonMappingException.fromUnexpectedIOE(e);
-            }
-        }
+
+        // Since setter values are stored in a reverse-order linked list,
+        // this will set them in their original order
+        _setSetterValuesInReverse(_anyParamBuffered, anySetterParameterObject);
         return anySetterParameterObject;
     }
 
+    private static void _setSetterValuesInReverse(PropertyValue pv, Object anySetterParameterObject)
+            throws JsonMappingException
+    {
+        if (pv == null) {
+            return;
+        }
+
+        _setSetterValuesInReverse(pv.next, anySetterParameterObject);
+
+        try {
+            pv.setValue(anySetterParameterObject);
+
+        // Since one of callers only exposes JsonMappingException, but pv.setValue()
+        // nominally leaks IOException, need to do this unfortunate conversion
+        } catch (JsonMappingException e) {
+            throw e;
+        } catch (IOException e) {
+            throw JsonMappingException.fromUnexpectedIOE(e);
+        }
+    }
+
     protected Object _findMissing(SettableBeanProperty prop) throws JsonMappingException
     {
         // 08-Jun-2024: [databind#562] AnySetters are bit special

src/test/java/com/fasterxml/jackson/databind/deser/creators/AnySetterForCreator562Test.java

@@ -182,7 +182,7 @@ public void testNodeAnySetterViaCreator562() throws Exception
                 PojoWithNodeAnySetter.class);
 
         assertEquals("value", pojo.a);
-        assertEquals(a2q("{'c':111,'b':42}"), pojo.anySetterNode + "");
+        assertEquals(a2q("{'b':42,'c':111}"), pojo.anySetterNode + "");
 
         // Also ok to get nothing, resulting in empty ObjectNode
         pojo = MAPPER.readValue(a2q("{'a':'ok'}"), PojoWithNodeAnySetter.class);