Search results

Allow late-binding or reconfiguration of <code>TokenStreamFactory</code> on <code>MapperBuilder</code>

3.xIssues to be only tackled for Jackson 3.x, not 2.xIssues to be only tackled for Jackson 3.x, not 2.x

Status: Open.

#5524 In FasterXML/jackson-databind;

· mhewedy opened on Dec 22, 2025

@JsonFormat(with = JsonFormat.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY) doesn't work on custom Collection subclass

3.1

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5522 In FasterXML/jackson-databind;

· jher235 opened on Dec 22, 2025

Support <code>@JsonInclude</code> for arrays

3.1

Status: Open.

#5515 In FasterXML/jackson-databind;

· JooHyukKim opened on Dec 21, 2025

Combination of sealed class and polymorphism does not work as expected when deserializing json

2.19Issues planned at 2.19 or laterIssues planned at 2.19 or later

polymorphic-deductionIssues related to "Id.DEDUCTION" mode of `@JsonTypeInfo`Issues related to "Id.DEDUCTION" mode of `@JsonTypeInfo`

polymorphic-handlingProblem with polymorphic type handling (`@JsonTypeInfo`, Default Typing)Problem with polymorphic type handling (`@JsonTypeInfo`, Default Typing)

Status: Open.

#5496 In FasterXML/jackson-databind;

· FranchescaMullin opened on Dec 10, 2025

Unchecked conversion warning in <code>JsonMapper</code>

need-test-caseTo work on issue, a reproduction (ideally unit test) neededTo work on issue, a reproduction (ideally unit test) needed

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5485 In FasterXML/jackson-databind;

· ilgrosso opened on Dec 9, 2025

Inconsistent behaviour with package private constructors in Jackson 3

Status: Open.

#5427 In FasterXML/jackson-databind;

· michael-simons opened on Nov 24, 2025

<code>NullNode#asString</code> and <code>NullNode#asString(String)</code> discrepency with Jackson 2

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5417 In FasterXML/jackson-databind;

· filiphr opened on Nov 21, 2025

Is @JsonCreator support both DELEGATING mode and PROPERTIES mode deserialization for Enums?

enumRelated to handling of Enum valuesRelated to handling of Enum values

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5395 In FasterXML/jackson-databind;

· HaohuaLv opened on Nov 15, 2025

Deserialization fails with ImmutableList in Jackson 2.18.3

2.18Issues planned at 2.18 or laterIssues planned at 2.18 or later

lombokIssue (likely) related to use of LombokIssue (likely) related to use of Lombok

need-test-caseTo work on issue, a reproduction (ideally unit test) neededTo work on issue, a reproduction (ideally unit test) needed

Status: Open.

#5381 In FasterXML/jackson-databind;

· krritik opened on Nov 5, 2025

<code>@JsonValue</code> ignores propertyInclusion rules for config overide

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5380 In FasterXML/jackson-databind;

· LSwiatek opened on Nov 4, 2025

Support <code>@JsonInclude</code> for <code>Collection</code>

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5369 In FasterXML/jackson-databind;

· JooHyukKim opened on Oct 29, 2025

Preserve order of <code>@JsonAnySetter</code> creator property arguments

to-evaluateIssue that has been received but not yet evaluatedIssue that has been received but not yet evaluated

Status: Open.

#5353 In FasterXML/jackson-databind;

· eranl opened on Oct 19, 2025