Fixed #2331

Author: cowtowncoder

release-notes/VERSION-2.x

@@ -4,6 +4,11 @@ Project: jackson-databind
 === Releases === 
 ------------------------------------------------------------------------
 
+2.10.0.pr2 (not yet released)
+
+#2331: `JsonMappingException` through nested getter with generic wildcard return type
+ (reported by sunchezz89@github)
+
 2.10.0.pr1 (19-Jul-2019)
 
 #18: Make `JsonNode` serializable

src/main/java/com/fasterxml/jackson/databind/type/ResolvedRecursiveType.java

@@ -28,14 +28,20 @@ public void setReference(JavaType ref)
 
     @Override
     public JavaType getSuperClass() {
-    	if (_referencedType != null) {
-    		return _referencedType.getSuperClass();
-    	}
-    	return super.getSuperClass();
+        if (_referencedType != null) {
+            return _referencedType.getSuperClass();
+        }
+        return super.getSuperClass();
     }
 
     public JavaType getSelfReferencedType() { return _referencedType; }
 
+    // 23-Jul-2019, tatu: [databind#2331] Need to also delegate this...
+    @Override
+    public TypeBindings getBindings() {
+        return _referencedType.getBindings();
+    }
+
     @Override
     public StringBuilder getGenericSignature(StringBuilder sb) {
         return _referencedType.getGenericSignature(sb);

src/main/java/com/fasterxml/jackson/databind/type/TypeFactory.java

@@ -363,7 +363,6 @@ public JavaType constructSpecializedType(JavaType baseType, Class<?> subclass)
         if (rawBase == subclass) {
             return baseType;
         }
-
         JavaType newType;
 
         // also: if we start from untyped, not much to save