Fix : Cannot read Optionals written with StdTypeResolverBuilder, from [jackson-modules-java8#86]

release-notes/VERSION-2.x

@@ -40,6 +40,7 @@ Project: jackson-databind
 
 #4827: Subclassed Throwable deserialization fails since v2.18.0 - no creator
   index for property 'cause'
+ (reported by @nilswieber)
  (fix by Joo-Hyuk K)
 #4844: Fix wrapped array hanlding wrt `null` by `StdDeserializer`
  (fix by Stanislav S)

src/test/java/com/fasterxml/jackson/databind/deser/enums/EnumSetPolymorphicDeser4214Test.java

@@ -11,6 +11,7 @@
 import com.fasterxml.jackson.databind.jsontype.BasicPolymorphicTypeValidator;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import static com.fasterxml.jackson.databind.testutil.DatabindTestUtil.jsonMapperBuilder;
 
@@ -48,5 +49,6 @@ public void testPolymorphicDeserialization4214() throws Exception
         String json = mapper.writeValueAsString(enumSetHolder);
         EnumSetHolder result = mapper.readValue(json, EnumSetHolder.class);
         assertEquals(result, enumSetHolder);
+        assertTrue(result.enumSet instanceof EnumSet<?>);
     }
 }