Jackson JSON processor is an Open Source product available under one or more OSS-approved licenses.
FasterXML offers additional licensing for customers who wish to use Jackson under alternative licenses (commercial or open source)
As of version 2.0, Jackson is offered under the Apache 2.0 license only:
Jackson 1.x is offered under one of two OSS licenses:
with users choosing which license they want to use. This can be done by choosing specific jar; or in case of source distributions, by indicating choice externally.
All contributions are to be so that they can be licensed under these licenses: exact details are available via developer mailing list).