A class loader framework

The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.

HTTPClient provides an efficient, up-to-date, and feature-rich package implementing the client side of the most recent ...

Apache Commons Logging is a thin adapter allowing configurable bridging to other,

Apache Commons Validator provides the building blocks for both client-side and server-side data validation.

Doxia core classes and interfaces.

Doxia Sink API.

Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage ...

Excalibur's Logkit package

Model for Maven POM (Project Object Model)

Maven Settings model.

Per-directory local and remote repository metadata.

The API for Maven 3 plugins - Mojos - development.

Core classes of Apache Maven to manage the building process.

Interface and implementation of Maven Artifact model

Abstract classes to manage report generation.

API to manage report generation.

Maven Wagon API that defines the contract between different Wagon implementations

Library from Apache Jakarta for regular expressions, text processing, and pattern matching in Java.

A component which provides Apache Velocity templating engine integration

The Plexus IoC container API and its default implementation.

A collection of various utility classes to ease working with strings, files, command lines and

Apache Velocity is a general purpose template engine.

JUnit Jupiter is the API for writing tests using JUnit 5.