Jackson Release 2.12.4

Patch version of 2.12, released 06-Jul-2021.

Following fixes will be included in this patch release.

Changes, core

Streaming

• #702: ArrayOutOfBoundException at WriterBasedJsonGenerator.writeString(Reader, int)

Databind

• #3139: Deserialization of "empty" subtype with DEDUCTION failed
• #3146: Merge findInjectableValues() results in AnnotationIntrospectorPair
• #3171: READ_UNKNOWN_ENUM_VALUES_USING_DEFAULT_VALUE doesn't work with empty strings

Changes, data formats

CBOR

• 287: Uncaught exception in CBORParser._nextChunkedByte2() (by ossfuzzer)
• 288: Uncaught exception in CBORParser._findDecodedFromSymbols() (by ossfuzzer)

XML

• #469: Empty tags cause incorrect deserialization of unwrapped lists
• #473: Parsing of null Integer fields changed behavior between version 2.11 and 2.12
• #482: Use of non-Stax2-compatible Stax2 implementation fails when reading from byte[]

YAML

• #274: YAMLGenerator does not quote tilde (~) characters when MINIMIZE_QUOTES is enabled

Changes, Java 8 modules

• #214: readerForUpdating(objectToUpdate).readValue(json) behaves unexpectedly on Optional

Changes, other modules

Afterburner

• #131: Failing to serialize Thread returned by Thread.currentThread() when Afterburner or Blackbird registered

Mr Bean

• #132: (partial fix) Prevent materialization of java.util.TimeZone