jackson-databind

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Suggestion: Support value deduplication for enumeration like values

5

There are many use cases where the json to be deserialized contains pseudo enumeration values as string. Take a look at these examples ``` { "type": "cat", "name": "Toby"} ```...

CodingFabian

Deserialization of 2D arrays of final types, when using `DefaultTyping.NON_FINAL`

2

Hi, I'm currently trying to serialize and deserialize a two-dimensional array of final types that are stored in a two-dimensional array of a non-final superclass (in the example below: storing...

klaasdellschaft

Delegating `@JsonCreator` does not prevent unnecessary introspection of properties, leading to bogus failure

3

**Describe the bug** I am trying to Serialize a class that has weird map-Types (eg. String[] as key), instead of implementing a Map(De)Serializer, I went the way of a @JsonValue...

awildturtok

Currently, there is no way to specify different merge behaviors for array-like types and `Map`s if one of the types is used as a container and the other one for...

dgerhardt

Existing object of local/anonymous class cannot be updated

2

When using `readerForUpdating` with an existing object, Jackson fails with: ``` Cannot deserialize Class mypackage.MyClass$1 (of type local/anonymous) as a Bean at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.isPotentialBeanType(BeanDeserializerFactory.java:883) at com.fasterxml.jackson.databind.deser.BeanDeserializerFactory.createBeanDeserializer(BeanDeserializerFactory.java:137) at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:414) at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:349) at...

avshenuk

Pre-process Value or Easily Delegate to Default Deserializer

5

I have a simple situation. The JSON I want to deserialize is in a base 64 encoded value. I need to decode the value, then let the default deserialization mechanisms...

EarthCitizen

JDK 16 and up / Illegal Access - Default Deny Field Access Request

2

All Reflective Access into JDK Internal's modules have been disabled by default in JDK 16 and above, The ability to override this in JDK 17 has been removed **Describe the...

GedMarc

Add feature to inverse read/write access logic

3

This feature is added to fix #2951

ggrebert

Polymorphism with aliases fails to utilize alias fields

2

As per thread in the mailing list: I'm trying to migrate a makeshift polymorphic custom deserializer (which i spawned because I hadn't read the docs). The deserializer originally worked like...

Dragas

Consider using `AccessibleObject.trySetAccess()` instead of `setAccess()` in `ClassUtil.checkAndFixAccess()`

1

With Java 9 and later, addition of Module system (JPMS) causes a new type of failure when attempting to call `setAccessible()` on Classes and accessors (Fields, Methods, Constructors). While we...

cowtowncoder