jackson-databind

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(note: inspired by OSS-Fuzz tests like https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50003 and similar issue for `jackson-core`, https://github.com/FasterXML/jackson-core/issues/811 ) Currently methods like ObjectReader.MappingIterator readValues(byte[] src, int offset, int length) do not actively verify that the...

cowtowncoder

`FactoryBasedEnumDeserializer` unable to deserialize enum object with Polymorphic Type Id ("As.WRAPPER_ARRAY") - fails on START_ARRAY token

7

**Describe the bug** FactoryBasedEnumDeserializer is unable to deserialize enum value which is wrapped in Array. **Version information** This is for Jackson 2.13.1 - It worked fine for release 2.10.1 **To...

nitinsatapara

Deserialization of `@JsonTypeInfo` annotated type fails with missing type id even for explicit concrete subtypes

9

When attempting to deserialize to a concrete class that is part of a polymorphic type hierarchy, an InvalidTypeIdException is thrown if the JSON does not contain the type id field....

kilink

@JsonUnwrapped not supported for Map-valued properties

31

According to the documentation, > Annotation used to indicate that a property should be serialized "unwrapped"; that is, if it would be serialized as JSON Object, its properties are instead...

stevenschlansker

**Describe the bug** When Enum has two factory methods, one with `JsonCreator.Mode.DELEGATING` and the other with `JsonCreator.Mode.PROPERTIES`, only the latter works. Deserialization that is supposed to target the DELEGATING one...

andrewbents

`Arrays.asList()` value deserialization has changed from mutable to immutable in 2.13

1

During the restructuring of the JavaUtilCollectionsDeserializers (#2900) class the type for Arrays#ArrayList was changed from modifiable to unmodifiable. This means you can no longer call methods like List#set on the...

JonasWilms

`@JsonIgnoreProperties(ignoreUnknown=false)` can not override `DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES=false`

10

**Description** I'm not sure if this is a bug or a desired behavior, but in my opinion it's a bug. Here's what happens: When you set ```DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES``` to ```false``` in...

noschang

Add streamlined sealed class polymorphic de/serialization

12

Add streamlined support for sealed class polymorphic de/serialization. Java 17 sealed classes are required to enumerate their allowed subclasses explicitly. This metadata should allow Jackson to infer the subtypes of...

sigpwned

Evaluate options around supporting fast parser in TextNode class

4

**Is your feature request related to a problem? Please describe.** Relates to https://github.com/FasterXML/jackson-core/issues/577. jackson-core and jackson-databind's StdDeserializer and NumberDeserializers check the StreamReadFeatures. There are more classes that use NumberInput to...

pjfanning

Java Record `@JsonAnySetter` value is null after deserialization

11

**Describe the bug** When deserializing a Java Record with `@JsonAnySetter` annotated field the field is left as null and the unmapped values are ignored. Given the nature of Java records,...

oujesky