$ show FasterXML/jackson
This is the central governance and documentation repository for the Jackson project, the premier Java JSON processing library. It does not contain the core library source code (which lives in separate repos like `jackson-core`, `jackson-databind`, and `jackson-annotations`). Instead, it serves as the project's hub, containing all essential governance documents (CLAs, contributing guidelines, security policy, versioning strategy), a comprehensive API reference manual (`MANUAL.md`), and an exceptionally detailed migration guide from Jackson 2.x to 3.x. The repository is a masterclass in open-source project management and technical documentation, providing a clear, well-structured, and authoritative source of truth for the entire Jackson ecosystem. Its primary value lies not in executable code, but in the high-quality, reusable patterns it establishes for project governance, release engineering, and technical communication.
The LLM identified 6 files worth highlighting for reuse:
An exceptionally thorough and well-structured migration guide from Jackson 2.x to 3.x. It covers every breaking change, provides clear code examples, explains the rationale behind changes (linking to JSTEP proposals), and offers performance considerations. This document is a gold standard for any project undergoing a major version upgrade and is highly reusable as a template.
A detailed and well-reasoned explanation of the Jackson project's branching and versioning model (Apache versioning, LTS branches, micro-patches). It clearly defines branch statuses (Open/Closed) and the relationship between development, release, and maintenance branches. This is a highly reusable pattern document for any open-source project manager looking to establish a clear release engineering process.
A comprehensive, hierarchical reference manual for the Jackson API. It covers processing models (Tree, POJO, Streaming), main API objects (ObjectMapper, JsonFactory, Context objects), annotation-based configuration, feature enums, and advanced topics like polymorphic handling and custom handlers. It demonstrates deep architectural understanding and is a standalone, reusable technical reference.
A clear and concise coding style guide for Java source code in the Jackson project. It covers indentation, import ordering, naming conventions (including the use of underscores for non-public fields), use of `final`, line length limits, and testing conventions. It is a well-structured, reusable template for any Java project.
A well-structured security policy that outlines supported versions, the primary reporting mechanism (GitHub Security Advisory), and a secondary email contact. It also links to a published security audit and explains how to verify artifact signatures. This is a model security policy that is directly reusable as a template for other open-source projects.
A detailed contributing guide that covers community communication channels, issue tracking, pull request workflows, branch targeting strategy, backwards compatibility requirements, coding style, testing expectations, and the CLA process. It is a comprehensive and well-organized template for any open-source project.