test case to illustrate jackson-543, generic widening serialization bug

ahgittin · Sep 13, 2014 · c9d89b4 · c9d89b4
1 parent 2dde645
commit c9d89b4
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/src/test/java/com/fasterxml/jackson/databind/jsontype/TestWithGenerics.java b/src/test/java/com/fasterxml/jackson/databind/jsontype/TestWithGenerics.java
@@ -45,6 +45,19 @@ static class ContainerWithField<T extends Animal> {
         public ContainerWithField(T a) { animal = a; }
     }
 
+    static class ContainerWithTwoAnimals<U extends Animal,V extends Animal> extends ContainerWithField<U> {
+        public V otherAnimal;
+
+        public ContainerWithTwoAnimals(U a1, V a2) {
+            super(a1);
+            otherAnimal = a2;
+        }
+    }
+
+    static class WrappedContainerWithField {
+        public ContainerWithField<?> animalContainer;
+    }
+
     // Beans for [JACKSON-387], [JACKSON-430]
 
     @JsonTypeInfo(use=JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY, property="@classAttr1")
@@ -201,4 +214,13 @@ public void testJackson430() throws Exception
         assertNotNull(mc2.params);
         assertEquals(1, mc2.params.size());
     }
+
+    public void testValueWithMoreGenericParameters() throws Exception
+    {
+        WrappedContainerWithField wrappedContainerWithField = new WrappedContainerWithField();
+        wrappedContainerWithField.animalContainer = new ContainerWithTwoAnimals<Dog,Dog>(new Dog("d1",1), new Dog("d2",2));
+        new ObjectMapper().writeValueAsString(wrappedContainerWithField);
+        // line above throws exception due to JACKSON-543 
+    }
+
 }