Fix regression #4639

release-notes/VERSION-2.x

@@ -9,6 +9,10 @@ Project: jackson-databind
 #4508: Deserialized JsonAnySetter field in Kotlin data class is null
  (reported by @MaximValeev)
  (fix by Joo-Hyuk K)
+#4639: @JsonAnySetter on field ignoring unrecognized properties if they are
+  declared before the last recognized properties in JSON
+ (reported by Sim Y-T)
+ (fix by Joo-Hyuk K)
 #4718: Should not fail on trying to serialize `java.time.DateTimeException`
 #4724: Deserialization behavior change with Records, `@JsonCreator` and
   `@JsonValue` between 2.17 and 2.18

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

@@ -505,7 +505,12 @@ protected Object _deserializeUsingPropertyBased(final JsonParser p, final Deseri
             // "any property"?
             if (_anySetter != null) {
                 try {
-                    buffer.bufferAnyParameterProperty(_anySetter, propName, _anySetter.deserialize(p, ctxt));
+                    // [databind#4639] Since 2.18.1 AnySetter might not part of the creator, but just some field.
+                    if (_anySetter.isFieldType()) {
+                        buffer.bufferAnyProperty(_anySetter, propName, _anySetter.deserialize(p, ctxt));
+                    } else {
+                        buffer.bufferAnyParameterProperty(_anySetter, propName, _anySetter.deserialize(p, ctxt));
+                    }
                 } catch (Exception e) {
                     wrapAndThrow(e, _beanType.getRawClass(), propName, ctxt);
                 }

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

@@ -194,6 +194,13 @@ Object readResolve() {
      */
     public int getParameterIndex() { return -1; }
 
+    /**
+     * Method called to check whether this property is field
+     *
+     * @since 2.18.1
+     */
+    public boolean isFieldType() { return _setterIsField; }
+
     /**
      * Create an instance of value to pass through Creator parameter.
      *

src/test/java/com/fasterxml/jackson/databind/deser/JsonAnySetterFieldWithCreatorDeser4639Test.java

@@ -0,0 +1,60 @@
+package com.fasterxml.jackson.databind.deser;
+
+import java.util.Map;
+
+import com.fasterxml.jackson.annotation.JsonAnySetter;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.testutil.DatabindTestUtil;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+// [databind#4639] 2.18.1 : regression when using @JsonAnySetter outside of @JsonCreator
+public class JsonAnySetterFieldWithCreatorDeser4639Test
+        extends DatabindTestUtil
+{
+
+    public static class Bean {
+        private int b;
+        private int d;
+
+        @JsonAnySetter
+        private Map<String, ?> any;
+
+        @JsonCreator
+        public Bean(@JsonProperty("b") int b, @JsonProperty("d") int d) {
+            this.b = b;
+            this.d = d;
+        }
+    }
+
+    @Test
+    public void testJsonAnySetter()
+            throws Exception
+    {
+        String json = "{\"a\":1,\"b\":2,\"c\":3,\"d\":4,\"e\":5,\"f\":6}";
+
+        Bean bean = newJsonMapper().readValue(json, Bean.class);
+        assertEquals(2, bean.b);
+        assertEquals(4, bean.d);
+
+        // failed with:
+        // org.opentest4j.AssertionFailedError:
+        // Expected :{b=2, c=3, e=5, f=6}
+        // Actual   :{e=5, f=6}
+        assertEquals(mapOf("a", 1, "c", 3, "e", 5, "f", 6), bean.any);
+    }
+
+    private Map<String, Integer> mapOf(String a, int i, String b, int i1, String c, int i2, String d, int i3)
+    {
+        Map<String, Integer> map = new java.util.HashMap<>();
+        map.put(a, i);
+        map.put(b, i1);
+        map.put(c, i2);
+        map.put(d, i3);
+        return map;
+    }
+
+}