Update release notes wrt #445, move test from failing to non-failing

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -120,7 +120,10 @@ Migwel@github
 * Contributed #360: Add a feature to support writing `xsi:nil` attribute for
   `null` values
  (2.12.0)
- 
+* Contributed fix for #445: `XmlMapper`/`UntypedObjectDeserializer` mixes
+  multiple unwrapped collections
+ (2.12.2)
+
 Ingo Wiarda (dewarim@github)
 
 * Reported #374: Deserialization fails with `XmlMapper` and

release-notes/VERSION-2.x

@@ -4,6 +4,11 @@ Project: jackson-dataformat-xml
 === Releases ===
 ------------------------------------------------------------------------
 
+2.12.2 (not yet released)
+
+#445: `XmlMapper`/`UntypedObjectDeserializer` mixes multiple unwrapped collections
+ (fix contributed by Migwel@github)
+
 2.12.1 (08-Jan-2021)
 
 #435: After upgrade to 2.12.0, NPE when deserializing an empty element to `ArrayList`

src/test/java/com/fasterxml/jackson/dataformat/xml/deser/UntypedObjectDeserTest.java

@@ -1,5 +1,9 @@
 package com.fasterxml.jackson.dataformat.xml.deser;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.ObjectWriter;
@@ -81,4 +85,25 @@ public void testMixedContent() throws Exception
             fail("Expected:\n"+w.writeValueAsString(exp)+"\ngot:\n"+w.writeValueAsString(fromXml));
         }
     }
+
+    // [dataformat-xml#445]: problem with earlier #205 implementation (from 2.12.0),
+    // fixed in 2.12.2
+    public void testDuplicateListDeser445() throws Exception
+    {
+        final String XML =
+                "<person>\n" +
+                        "    <name>a</name>\n" +
+                        "    <name>b</name>\n" +
+                        "    <surname>c</surname>\n" +
+                        "    <surname>d</surname>\n" +
+                        "</person>";
+        @SuppressWarnings("unchecked")
+        Map<String, List<String>> person = (Map<String, List<String>>) XML_MAPPER.readValue(XML, Object.class);
+        List<String> names = person.get("name");
+        List<String> surnames = person.get("surname");
+        assertEquals(2, names.size());
+        assertEquals(Arrays.asList("a", "b"), names);
+        assertEquals(2, surnames.size());
+        assertEquals(Arrays.asList("c", "d"), surnames);
+    }
 }