Fix #3882 (JsonNode.withArray() fail)

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -4,6 +4,11 @@ Project: jackson-databind
 === Releases === 
 ------------------------------------------------------------------------
 
+2.14.4 (not yet released)
+
+#3882: Error in creating nested `ArrayNode`s with `JsonNode.withArray()`
+ (reported by @SaiKrishna369)
+
 2.14.3 (05-May-2023)
 
 #3784: `PrimitiveArrayDeserializers$ByteDeser.deserialize` ignores

src/main/java/com/fasterxml/jackson/databind/node/ArrayNode.java

@@ -188,9 +188,9 @@ protected ArrayNode _withArrayAddTailElement(JsonPointer tail, boolean preferInd
             _withXxxSetArrayElement(index, next);
             return next._withArrayAddTailElement(tail, preferIndex);
         }
-        ArrayNode next = this.arrayNode();
+        ObjectNode next = this.objectNode();
         _withXxxSetArrayElement(index, next);
-        return next._withArrayAddTailElement(tail, preferIndex);
+        return next._withArrayAddTailProperty(tail, preferIndex);
     }
 
     protected void _withXxxSetArrayElement(int index, JsonNode value) {

src/test/java/com/fasterxml/jackson/databind/node/WithPathTest.java

@@ -4,7 +4,7 @@
 import com.fasterxml.jackson.databind.*;
 import com.fasterxml.jackson.databind.JsonNode.OverwriteMode;
 
-// for [databuind#1980] implementation
+// for [databind#1980] implementation
 public class WithPathTest extends BaseMapTest
 {
     private final ObjectMapper MAPPER = sharedMapper();
@@ -296,4 +296,23 @@ private void _verifyArrayReplaceFail(JsonNode doc, JsonPointer ptr, OverwriteMod
             verifyException(e, "(mode `OverwriteMode."+mode.name()+"`)");
         }
     }
+
+    // [databind#3882]
+    public void testWithArray3882() throws Exception
+    {
+        ObjectNode root = MAPPER.createObjectNode();
+        ArrayNode aN = root.withArray("/key/0/a",
+                JsonNode.OverwriteMode.ALL, true);
+        aN.add(123);
+        assertEquals(a2q("{'key':[{'a':[123]}]}"),
+                root.toString());
+
+        // And then the original case
+        root = MAPPER.createObjectNode();
+        aN = root.withArray(JsonPointer.compile("/key1/array1/0/element1"),
+            JsonNode.OverwriteMode.ALL, true);
+        aN.add("v1");
+        assertEquals(a2q("{'key1':{'array1':[{'element1':['v1']}]}}"),
+                root.toString());
+    }
 }