Mark #404 as fixed (via actual fix in jackson-databind)

FasterXML · May 4, 2023 · dc06384 · dc06384
1 parent 54703fc
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diff --git a/release-notes/CREDITS-2.x b/release-notes/CREDITS-2.x
@@ -239,3 +239,8 @@ Niels Basjes (nielsbasjes@github)
 
 * Contributed #415: (yaml) Use `LoaderOptions.allowDuplicateKeys` to enforce duplicate key detection
  (2.15.0)
+
+Peter Haumer (phaumer@github)
+
+* Reported #404: (yaml) Cannot serialize YAML with Deduction-Based Polymorphism
+ (2.15.1)
diff --git a/release-notes/VERSION-2.x b/release-notes/VERSION-2.x
@@ -14,6 +14,11 @@ Active Maintainers:
 === Releases ===
 ------------------------------------------------------------------------
 
+2.15.1 (not yet released)
+
+#404: (yaml) Cannot serialize YAML with Deduction-Based Polymorphism
+ (reported by Peter H)
+
 2.15.0 (23-Apr-2023)
 
 #373: (yaml) Positive numbers with plus sign not quoted correctly with

diff --git a/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/misc/PolymorphicDeductionTest.java b/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/misc/PolymorphicDeductionTest.java
@@ -9,7 +9,7 @@
 import static com.fasterxml.jackson.annotation.JsonSubTypes.Type;
 import static com.fasterxml.jackson.annotation.JsonTypeInfo.Id.DEDUCTION;
 
-// for [databind#43], deduction-based polymorphism
+// Copied from [databind#43], deduction-based polymorphism
 public class PolymorphicDeductionTest extends ModuleTestBase
 {
   @JsonTypeInfo(use = DEDUCTION)
@@ -21,7 +21,7 @@ interface Feline {}
   @JsonSubTypes( {@Type(LiveCat.class), @Type(DeadCat.class)})
   // A supertype containing common properties
   public static class Cat implements Feline {
-    public String name;
+    public String name = "Grizabella";
   }
 
   // Distinguished by its parent and a unique property
@@ -87,4 +87,11 @@ public void testCaseInsensitiveInference() throws Exception
     assertEquals("FELIX", cat.name);
     assertEquals("ENTROPY", ((DeadCat)cat).causeOfDeath);
   }
+
+  // [dataformats-text#404]:
+  public void testSerializationOfInferred() throws Exception
+  {
+      assertEquals("name: \"Grizabella\"",
+              trimDocMarker(MAPPER.writeValueAsString(new Cat())));
+  }
 }