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Jackson Core: Streaming

Licensing

Project is licensed under Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0.txt) like all official Jackson components.

FasterXML also explicitly allows users to alternatively license component under Lesser GPL (LGPL) 2.1 up to and including version 2.2. If so, they may want to repackage artifacts to reflect their choice of license to use.

Documentation

Streaming API defines sets of simple on/off features. Jackson 2.10 introduced a change in how features are structured so that earlier JsonParser.Feature/JsonGenerator.Feature set was split into 4 new types, to separate JSON-specific features from general "format-agnostic" features.

• JsonFactory.Feature
• 2.9 and before
  • JsonParser.Feature (pre-2.10)
  • JsonGenerator.Feature (pre-2.10)
• 2.10 and after
  • General
    • StreamReadFeature (2.10+)
    • StreamWriteFeature (2.10+)
  • JSON-specific
    • JsonReadFeature (2.10+)
    • JsonWriteFeature (2.10+)

In addition, new "Processing Limits" have been added since 2.15:

• StreamReadConstraints
• StreamWriteConstraints

Javadocs

• v2.x Javadoc for jackson-core
• v1.x Javadoc for jackson-core (previous name for this component)

Related

• Jackson-docs is the Jackson 2.x documentation hub
• Jackson Github portal contains links to all official Jackson components

Download

Links to recent versions

Links removed on 2025-08-25 since list was not updated in years

Snapshots

Snapshots can be found from Sonatype Maven Snapshot repository: (new as of 2025/08)

    <repository>
      <id>central-snapshots</id>
      <name>Sonatype Central Portal (snapshots)</name>
      <url>https://central.sonatype.com/repository/maven-snapshots</url>
      <releases><enabled>false</enabled></releases>
      <snapshots><enabled>true</enabled></snapshots>
    </repository>