Jackson Release 2.12.2

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Tatu Saloranta edited this page Mar 4, 2021 · 35 revisions

Patch version of 2.12 was released on March 3, 2021.

Following fixes are included in this patch release.

Changes, core

Streaming

No changes since 2.12.1

Databind

#3008: String property deserializes null as "null" for JsonTypeInfo.As.EXTERNAL_PROPERTY
#3022: Property ignorals cause BeanDeserializer to forget how to read from arrays (not copying _arrayDelegateDeserializer)
#3025: UntypedObjectDeserializer mixes multiple unwrapped collections
#3038: Two cases of incorrect error reporting about DeserializationFeature
#3045: Bug in polymorphic deserialization with @JsonCreator, @JsonAnySetter, JsonTypeInfo.As.EXTERNAL_PROPERTY
#3055: Polymorphic subtype deduction ignores defaultImpl attribute
#3056: MismatchedInputException: Cannot deserialize instance of com.fasterxml.jackson.databind.node.ObjectNode out of VALUE_NULL token
#3060: Missing override for hasAsKey() in AnnotationIntrospectorPair
#3062: Creator lookup fails with InvalidDefinitionException for conflict between single-double/single-Double arg constructo
#3068: MapDeserializer forcing JsonMappingException wrapping even if WRAP_EXCEPTIONS set to false

Changes, data formats

CBOR

#236: ArrayIndexOutOfBoundsException in CBORParser for invalid UTF-8 String
#240: Handle invalid CBOR content like [ 0x84 ] (incomplete array)

Ion

#241: Respect WRITE_ENUMS_USING_TO_STRING in EnumAsIonSymbolSerializer
#242: Add support for generating IonSexps
#244: Add support for deserializing IonTimestamps and IonBlobs
#247: Enabling pretty-printing fails Ion serialization

XML

#445: XmlMapper/UntypedObjectDeserializer mixes multiple unwrapped collections
#451: Xml type resolver fails with NPE when property name is not specified in polymorphic (de)serialization

Changes, datatypes

Java 8 date/time

#202: Unable to deserialize YearMonth when running as java9 module, added with @JsonDeserialize annotation

JSR-353/JSON-P

#6: Add jakarta classifier version of jackson-datatype-jsr353 to work with new Jakarta-based JSON-P

Changes, other modules

Java 8 / parameter names

#206: @JsonKeyis ignored with parameter-names module registered

JAX-RS Providers

#132: jaxrs jakarta versions have javax.ws references in OSGi manifest

Changes, JVM Languages

Kotlin

#182: Nullable unsigned numbers do not serialize correctly
#409: module-info.java missing "exports"

Scala

#330: try to fix issue where wrong constructor can be chosen
#438: fix issues with handling field names that have dashes
#495: Fix regression since v2.12.0 where Scala objects (as opposed to case objects) were not serializing correctly.
#497: allow DescriptorCache to be replaced with custom implementation
#505: Fix regression since v2.12.0 where @JsonCreator annotations on companion classes were not always been handled. Had to reintroduce the dependency on paranamer jar to fix this