FasterXML/jackson-dataformat-xml

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Extension for Jackson JSON processor that adds support for serializing POJOs as XML (and deserializing from XML) as an alternative to JSON

Stars: 631
Forks: 246
Open beginner issues: 0
Indexed issues: 39
Avg merge: 7d 9h
Merged PRs (30d): 13

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 15, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

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39 open issues indexed

Make `JsonTypeInfo As.WRAPPER_ARRAY` work Open

FasterXML/jackson-dataformat-xml#4 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support for providing namespace to use for fields of a Class (unless overridden by field) Open

most-wanted

FasterXML/jackson-dataformat-xml#18 · 29 comments · 5 reactions · 0 assignees · Indexed Sep 15, 2026
Attribute / element name collision (same local name, different namepace) cannot be configured during deserialization Open

most-wanted name-collision

FasterXML/jackson-dataformat-xml#65 · 9 comments · 8 reactions · 0 assignees · Indexed Sep 15, 2026
Support some form of custom escaping of XML values written using Stax (Woodstox/Aalto) functionality Open

FasterXML/jackson-dataformat-xml#75 · 10 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Using `@XmlAttribute` for property with non-scalar type prevents serialization as attribute for other properties Open

has-failing-test

FasterXML/jackson-dataformat-xml#128 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Allow enabling XML validation (DTD, XML Schema, RelaxNG) during deserialization? Open

FasterXML/jackson-dataformat-xml#154 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
XML serialization on list of polymorphic values does not combine property, type id Open

jaxb-type-id most-wanted

FasterXML/jackson-dataformat-xml#197 · 2 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
Allow preserving "is-attribute" with JsonNode to write output as attribute value Open

FasterXML/jackson-dataformat-xml#217 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Each list element is wrapped into an extra tag with the name of the list property (RFE: combine type id, property name) Open

FasterXML/jackson-dataformat-xml#230 · 15 comments · 6 reactions · 0 assignees · Indexed Sep 15, 2026
Serializing `Map`s will produce non-well-formed XML as keys are not modified as per XML name rules Open

FasterXML/jackson-dataformat-xml#244 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
If array property contents are split across separate elements, earlier values are overwritten Open

FasterXML/jackson-dataformat-xml#251 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add support for non-blocking ("async") XML parsing Open

FasterXML/jackson-dataformat-xml#260 · 4 comments · 23 reactions · 0 assignees · Indexed Sep 15, 2026
XML Serialization + JsonAnyGetter as attributes Open

3.x

FasterXML/jackson-dataformat-xml#309 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Suggestion: serializing primitive values as attributes by default Open

FasterXML/jackson-dataformat-xml#320 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Hard coding for Indexed type item/wrapper name removes all possiblity of customization Open

FasterXML/jackson-dataformat-xml#356 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Collection values overwritten if item elements are not contiguous (mixed content) Open

mixed-content will-not-fix

FasterXML/jackson-dataformat-xml#363 · 5 comments · 6 reactions · 0 assignees · Indexed Sep 15, 2026
Problem trying to generate XML with dynamic list entry tags Open

jaxb-type-id

FasterXML/jackson-dataformat-xml#400 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support extracting the whole DOM model under given XML element Open

most-wanted

FasterXML/jackson-dataformat-xml#417 · 1 comment · 23 reactions · 0 assignees · Indexed Sep 15, 2026
Type-safe record wrappers to serialize as XML Attributes Open

record

FasterXML/jackson-dataformat-xml#558 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Support `SerializationFeature.WRAP_ROOT_VALUE` for XML backend too Open

FasterXML/jackson-dataformat-xml#494 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`XmlMapper` output not well-formed when Object keys use invalid XML name characters Open

test-needed

FasterXML/jackson-dataformat-xml#511 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Polymorphic deserialization based on root tag Open

FasterXML/jackson-dataformat-xml#537 · 1 comment · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Support case where element and attribute have same name Open

most-wanted name-collision

FasterXML/jackson-dataformat-xml#555 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
JAXB `@XmlValue` deserializing not working with records Open

has-failing-test

FasterXML/jackson-dataformat-xml#559 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add support for @ prefixed attrib. in paths Open

FasterXML/jackson-dataformat-xml#573 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
JAXB `@XmlJavaTypeAdapter` not working in conjunction with `java.util.Optional` Open

FasterXML/jackson-dataformat-xml#588 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support for `StreamReadConstraints.maxDocumentLength` Open

3.x processing-limits

FasterXML/jackson-dataformat-xml#609 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
XML attributes are not correctly populated when converting from XML (ObjectNode) to String using writeValueAsString (XML structure) Open

FasterXML/jackson-dataformat-xml#613 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Support retaining of XML attribute-ness with `JsonNode` Open

FasterXML/jackson-dataformat-xml#614 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
If there are HTML tags within XML tags, @JacksonXmlText will assign incorrect values to the content. Open

has-failing-test

FasterXML/jackson-dataformat-xml#623 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How to avoid wstxns1: prefix Open

FasterXML/jackson-dataformat-xml#666 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Allow custom prefix for attributes name Open

FasterXML/jackson-dataformat-xml#667 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Write namespace declaration on root element only? Open

FasterXML/jackson-dataformat-xml#670 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Support XML element name based on runtime type Open

FasterXML/jackson-dataformat-xml#679 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve support for XML lists via `JsonNode` Open

FasterXML/jackson-dataformat-xml#695 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Jackson XML reading mixed sibling nodes "overwriting" issue Open

FasterXML/jackson-dataformat-xml#712 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Deserialization of heterogeneous list Open

3.x

FasterXML/jackson-dataformat-xml#787 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
XmlMapper with `FAIL_ON_UNKNOWN_PROPERTIES` fails on whitespace-only element Open

to-evaluate

FasterXML/jackson-dataformat-xml#892 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
The version 2.18.10 seems to be released with class file version 61.0 / Java 17 Open

FasterXML/jackson-dataformat-xml#900 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

FasterXML/jackson-dataformat-xml

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