Add passing test for #853 (fixed as dup of #615) (#854)

Author: cowtowncoder

release-notes/VERSION

@@ -125,6 +125,10 @@ Version: 3.x (for earlier see VERSION-2.x)
  (implemented by @cowtowncoder, w/ Claude code)
 #849: Allow writing Comments in Document Prolog (before root element)
  (implemented by @cowtowncoder)
+#853: `InvalidDefinitionException` on classes using
+  `@JacksonXmlElementWrapper` and `@JacksonXmlProperty`
+ (reported by @soc)
+ (fix by @cowtowncoder, w/ Claude code)
 
 3.1.2 (11-Apr-2026)
 3.1.1 (27-Mar-2026)

src/test/java/tools/jackson/dataformat/xml/deser/ElementWrapperCreator853Test.java

@@ -0,0 +1,80 @@
+package tools.jackson.dataformat.xml.deser;
+
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import tools.jackson.dataformat.xml.XmlTestUtil;
+import tools.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
+import tools.jackson.dataformat.xml.annotation.JacksonXmlProperty;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+// [dataformat-xml#853] InvalidDefinitionException on classes using
+// @JacksonXmlElementWrapper and @JacksonXmlProperty on a field when class
+// has a matching args-constructor (e.g., record).
+public class ElementWrapperCreator853Test extends XmlTestUtil
+{
+    // Class version: field-annotated only, no @JsonCreator, single args ctor
+    static class GroupDto {
+        @JacksonXmlElementWrapper(localName = "users")
+        @JacksonXmlProperty(localName = "user")
+        private List<String> users;
+
+        private String name;
+
+        @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
+        public GroupDto(@JsonProperty("users") List<String> users,
+                @JsonProperty("name") String name) {
+            this.users = users;
+            this.name = name;
+        }
+
+        public List<String> getUsers() { return users; }
+        public String getName() { return name; }
+    }
+
+    // Record version: most direct form
+    public record GroupRecord(
+            @JacksonXmlElementWrapper(localName = "users")
+            @JacksonXmlProperty(localName = "user")
+            List<String> users,
+            String name
+    ) {}
+
+    private static final String XML =
+            "<GroupDto>"
+            + "<users>"
+            + "<user>A</user>"
+            + "<user>B</user>"
+            + "</users>"
+            + "<name>g1</name>"
+            + "</GroupDto>";
+
+    @Test
+    public void testDeserializeClass() throws Exception
+    {
+        GroupDto result = newMapper().readValue(XML, GroupDto.class);
+        assertNotNull(result.getUsers());
+        assertEquals(2, result.getUsers().size());
+        assertEquals("A", result.getUsers().get(0));
+        assertEquals("B", result.getUsers().get(1));
+        assertEquals("g1", result.getName());
+    }
+
+    @Test
+    public void testDeserializeRecord() throws Exception
+    {
+        String xml = XML.replace("GroupDto", "GroupRecord");
+        GroupRecord result = newMapper().readValue(xml, GroupRecord.class);
+        assertNotNull(result.users());
+        assertEquals(2, result.users().size());
+        assertEquals("A", result.users().get(0));
+        assertEquals("B", result.users().get(1));
+        assertEquals("g1", result.name());
+    }
+}