FasterXML/jackson-modules-base

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Uber-project for foundational modules of Jackson that build directly on core components but nothing else; not including data format or datatype modules

Stars: 180
Forks: 81
Open beginner issues: 0
Indexed issues: 40
Avg merge: 3h 26m
Merged PRs (30d): 1

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 1, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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40 open issues indexed

Remove CrossLoaderAccess companion-class slow path from Blackbird (deprecated in 3.2) Open

blackbird gen-ai

Difficulty 3/5 1-2 days Newbie friendliness 75/100

FasterXML/jackson-modules-base#350 · Opened Apr 14, 2026
NoCtorDeser module can not deserialize class derived from Throwable without default constructor Open

no-ctor-deser

Difficulty 3/5 1-2 days Newbie friendliness 57/100

FasterXML/jackson-modules-base#342 · 2 comments · Opened Apr 8, 2026
Eliminate `BeanPropertyAccessor` virtual call overhead for Afterburner Open

3.x afterburner pr-welcome

Difficulty 5/5 Over a week Newbie friendliness 20/100

FasterXML/jackson-modules-base#319 · 2 comments · Opened Oct 28, 2025
Unable to use Blackbird with Micronaut Open

blackbird need-test-case

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#311 · 6 comments · Opened Sep 22, 2025
jackson-module-jaxb-annotations: @XmlElements adds unwanted intermediate elements Open

jaxb-annotations

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#308 · 1 comment · Opened Sep 1, 2025
Guice7 Module usage with XmlMapper and JsonMapper concurrently Open

2.19 pr-welcome

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

FasterXML/jackson-modules-base#265 · 4 comments · Opened Dec 19, 2024
ClassCastException when using XmlAdapter with XmlEnum Open

jaxb-annotations

Difficulty 3/5 1-2 days Newbie friendliness 45/100

FasterXML/jackson-modules-base#256 · 4 comments · Opened Nov 19, 2024
Update `jakarta.xml.bind:jakarta.xml.bind-api` from 3.0.1 to 4.0.2 to remove dep to `com.sun.activation:jakarta.activation` Open

jakarta-xmlbind-annotations

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

FasterXML/jackson-modules-base#240 · 1 comment · Opened Apr 10, 2024
Copyright notice is missing Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#237 · 1 comment · Opened Mar 21, 2024
jackson-module-jaxb-annotations: can't use both @XmlElementWrapper and @XmlElement Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#213 · Opened Jul 12, 2023
Add support for JAXB's `@XmlSeeAlso` (maybe similar to `@JsonSubTypes`) to improve JAXB compatibility Open

jaxb-annotations

Difficulty 5/5 Over a week Newbie friendliness 35/100

FasterXML/jackson-modules-base#195 · 5 comments · Opened Jan 26, 2023
Add support for JAXB's XmlElementWrapper to improve JAXB-specification-compliance Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

FasterXML/jackson-modules-base#194 · 12 comments · 3 reactions · Opened Jan 26, 2023
NoCtorDeser can not deserialize parameterized types Open

no-ctor-deser

Difficulty 5/5 Over a week Newbie friendliness 25/100

FasterXML/jackson-modules-base#193 · 1 comment · Opened Jan 17, 2023
Materialized generic class resolved incorrectly Open

mrbean pr-welcome

Difficulty 4/5 3-5 days Newbie friendliness 45/100

FasterXML/jackson-modules-base#188 · 2 comments · Opened Nov 25, 2022
GuiceInjectableValues doesn't seem to work correctly Open

guice

Difficulty 3/5 1-2 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#179 · 2 comments · Opened May 26, 2022
MismatchedInputException for XmlIDREF in generic interface attribute Open

jaxb-annotations

Difficulty 4/5 3-5 days Newbie friendliness 28/100

FasterXML/jackson-modules-base#144 · 4 comments · Opened Jul 4, 2021
`WrongMethodTypeException` with blackbird Open

2.x blackbird

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#142 · 17 comments · Opened Jun 27, 2021
Registering JaxbAnnotationModule causes custom PropertyNamingStrategy to be ignored Open

jaxb-annotations

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#137 · 4 comments · Opened Jun 15, 2021
Cannot Deserialize Object with Builder when using AfterBurner and UseValueClassLoader is false Open

afterburner

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#129 · 6 comments · 1 reaction · Opened Mar 11, 2021
JAXB Module not handling polymorphic field name serialization when field annotated with XmlElements Open

documentation jaxb-annotations

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#127 · 1 comment · Opened Feb 10, 2021
Jackson Mr Bean Bean Materializer support for toString implementation Open

mrbean

Difficulty 4/5 3-5 days Newbie friendliness 30/100

FasterXML/jackson-modules-base#122 · 1 comment · Opened Dec 11, 2020
Help with CNFE with Afterburner creating property accessor class Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

FasterXML/jackson-modules-base#121 · 1 comment · Opened Dec 5, 2020
How to bypass MrBean for types with existing deserialization logic Open

mrbean

Difficulty 5/5 Over a week Newbie friendliness 30/100

FasterXML/jackson-modules-base#99 · 6 comments · Opened Jul 8, 2020
JaxbAnnotationIntrospector ignores @XmlJavaTypeAdapter to setter Serializable type Open

jaxb-annotations

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#73 · 2 comments · 1 reaction · Opened Jan 24, 2019
Utilize ByteBuddy's InjectionClassLoader instead of AbstractTypeMaterializer.MyClassLoader Open

afterburner

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#63 · Opened Sep 24, 2018
Repository artifact for non-shaded MrBean dependency Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

FasterXML/jackson-modules-base#62 · 3 comments · Opened Sep 24, 2018
Jackson emitting Jaxby @XmAttribute annotated property as an element when a bean serializer modifier is added. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#60 · 3 comments · Opened Sep 12, 2018
Consider use of Java 8 `LambdaMetafactory` for Afterburner getter/setter access Open

3.x afterburner

Difficulty 5/5 Over a week Newbie friendliness 25/100

FasterXML/jackson-modules-base#59 · 5 comments · Opened Aug 29, 2018
Afterburner class generation isn't compatible with PowerMock >=1.7.0, causing class cast exceptions Open

afterburner

Difficulty 4/5 3-5 days Newbie friendliness 45/100

FasterXML/jackson-modules-base#53 · 1 comment · Opened Jul 21, 2018
Can't put @JsonCreator on non-public ctor/method in signed jar Open

afterburner need-test-case

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#51 · 7 comments · Opened Jul 18, 2018
Jackson XmlElementWrapper handling with USE_WRAPPER_NAME_AS_PROPERTY_NAME fails if have 2 fields using same XmlElement name/class Open

jaxb-annotations

Difficulty 3/5 1-2 days Newbie friendliness 48/100

FasterXML/jackson-modules-base#47 · Opened Jun 18, 2018
JaxbAnnotationModule Serializes Object as Ref only Instead of as Full Object In some Cases Open

active jaxb-annotations

Difficulty 3/5 1-2 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#46 · 6 comments · Opened May 29, 2018
[guice] fail to inject MapBinder Open

Difficulty 3/5 1-2 days Newbie friendliness 28/100

FasterXML/jackson-modules-base#43 · 2 comments · Opened Mar 25, 2018
Make mr bean implement `clone()` method Open

mrbean

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#39 · 5 comments · Opened Jan 25, 2018
Java 9 warning for Afterburner Open

3.x afterburner

Difficulty 4/5 3-5 days Newbie friendliness 25/100

FasterXML/jackson-modules-base#37 · 54 comments · 58 reactions · Opened Dec 20, 2017
Support for default values Open

mrbean

Difficulty 5/5 Over a week Newbie friendliness 25/100

FasterXML/jackson-modules-base#23 · 11 comments · 3 reactions · Opened Nov 19, 2016
Consider changing checks for `is std (de)serializer` for `BeanPropertyWriter` Open

afterburner

Difficulty 3/5 1-2 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#15 · 1 comment · Opened Jun 27, 2016
Implement `equals()` method Open

mrbean

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#3 · Opened Feb 5, 2016
Implement `hashCode()` Open

mrbean

Difficulty 3/5 1-2 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#2 · Opened Feb 5, 2016
Guice Interceptors (AOP) are not activated when attached to ObjectMapper based instances Open

guice

Difficulty 4/5 3-5 days Newbie friendliness 35/100

FasterXML/jackson-modules-base#1 · 4 comments · Opened Feb 5, 2016

FasterXML/jackson-modules-base

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