Jackson Release 2.19.1

Patch version of 2.19, released June 13th, 2025.

Following fixes are included in this patch release.

Changes, core

BOM

• #99: Jackson BOM should not have managed dependency for third-party libraries (woodstox, stax-api)

Streaming

• #1425: JsonPointer.head() throws StringIndexOutOfBoundsException for valid JSON Pointers
• #1446: Invalid package reference to "java.lang.foreign" from com.fasterxml.jackson.core:jackson-core (from FastDoubleParser) [Android]

Databind

• #5139: In CollectionDeserializer, JsonSetter.contentNulls is sometimes ignored

Changes, data formats

Avro

• #589: AvroSchema: Does not include base class for records with subclasses

Changes, data types

Guava

• #185: ACCEPT_SINGLE_VALUE_AS_ARRAY doesn't work on Guava ImmutableList

Joda

• #98: JsonFormat timezone attribute effect overwritten if pattern attribute present

Changes, JVM Languages

Kotlin

Scala

• #732: if config has DeserializationFeature.FAIL_ON_NULL_CREATOR_PROPERTIES then try to fail on null again (collections)
• #745: add config to allow override of deserializeNullCollectionsAsEmpty