Unable to deserialize collection of concrete subclass when using defaultImpl

This worked in the last 2.7, but is broken in both 2.8.0 and 2.8.5.

I have a field parameterized with a concrete subclass of a base class annotated with @JsonTypeInfo, and I am trying to deserialize a collection that contains only that specific class. In 2.8.x, the readValue method fails with com.fasterxml.jackson.databind.JsonMappingException: Class JacksonSubclassCollectionTest$SomeBaseClass not subtype of [simple type, class JacksonSubclassCollectionTest$SomeSubClass]. This doesn’t appear to happen without defaultImpl (but I have legacy data with no type field that I need to be able to keep deserializing in other contexts). Full stack trace follows example.

public class JacksonSubclassCollectionTest {
  public static void main(String[] args) throws Exception {
    ObjectMapper mapper = new ObjectMapper();

    SomeContainer container = mapper.readValue("{\"collection\":[{\"type\":\"SUBCLASS\",\"field\":7}]}", SomeContainer.class);

    System.out.println(container.collection.get(0).field);
  }

  @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type", defaultImpl = SomeBaseClass.class, visible = true)
  @JsonSubTypes({@JsonSubTypes.Type(name = "SUBCLASS", value = SomeSubClass.class)})
  public static class SomeBaseClass {
    @JsonTypeId
    public String type;
  }

  public static class SomeSubClass extends SomeBaseClass {
    public int field;
  }

  public static class SomeContainer {
    public ArrayList<SomeSubClass> collection;
  }
}

Exception in thread "main" com.fasterxml.jackson.databind.JsonMappingException: Class JacksonSubclassCollectionTest$SomeBaseClass not subtype of [simple type, class JacksonSubclassCollectionTest$SomeSubClass]
 at [Source: {"collection":[{"type":"SUBCLASS","field":7}]}; line: 1, column: 1]
	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:296)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:269)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
	at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
	at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(DeserializationContext.java:475)
	at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:3890)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3785)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2833)
	at JacksonSubclassCollectionTest.main(JacksonSubclassCollectionTest.java:20)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.lang.IllegalArgumentException: Class JacksonSubclassCollectionTest$SomeBaseClass not subtype of [simple type, class JacksonSubclassCollectionTest$SomeSubClass]
	at com.fasterxml.jackson.databind.type.TypeFactory.constructSpecializedType(TypeFactory.java:359)
	at com.fasterxml.jackson.databind.jsontype.impl.StdTypeResolverBuilder.buildTypeDeserializer(StdTypeResolverBuilder.java:118)
	at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.findTypeDeserializer(BasicDeserializerFactory.java:1363)
	at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.findPropertyContentTypeDeserializer(BasicDeserializerFactory.java:1526)
	at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.resolveMemberAndTypeAnnotations(BasicDeserializerFactory.java:1841)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.constructSettableProperty(BeanDeserializerFactory.java:735)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.addBeanProps(BeanDeserializerFactory.java:520)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.buildBeanDeserializer(BeanDeserializerFactory.java:226)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.createBeanDeserializer(BeanDeserializerFactory.java:141)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:406)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:352)
	at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:264)
	... 12 more

[blop]

Guys, this is a BIG regression for people upgrading from 2.7.

If you have some class with a List<> and another with a Set<>, using a SimpleAbstractTypeResolver that provides the defaultImpl as ArrayList and HashSet, it just does NOT work anymore.

[KroligG]

Look like this is fixed by https://github.com/FasterXML/jackson-databind/issues/1565. At least updating to 2.9.6 fixed same issue for me.