PowerMock is a framework that extends other mock libraries such as EasyMock with more powerful capabilities. PowerMock uses a custom classloader and bytecode manipulation to enable mocking of static methods, constructors, final classes and methods, private methods, removal of static initializers and more. By using a custom classloader no changes need to be done to the IDE or continuous integration servers which simplifies adoption.

Objenesis is a small Java library that serves one purpose: to instantiate a new object of a particular class. It is common to see restrictions in libraries stating that classes must require a default constructor. Objenesis aims to overcome these restrictions by bypassing the constructor on object instantiation.

JOpt Simple is a Java library for parsing command line options, such as those you might pass to an invocation of javac. In the interest of striving for simplicity, as closely as possible JOpt Simple attempts to honor the command line option syntaxes of POSIX getopt and GNU getopt_long. It also aims to make option parser configuration and retrieval of options and their arguments simple and expressive, without being overly clever.

JSVG is a Java library for rendering SVG images. It provides a lightweight SVG parser and renderer using the Java2D API.

ASM is an all purpose Java bytecode manipulation and analysis framework. It can be used to modify existing classes or dynamically generate classes, directly in binary form. The provided common transformations and analysis algorithms allow easily assembling custom complex transformations and code analysis tools.

Ant is a platform-independent build tool for Java. It is similar to make but is implemented using the Java language, requires the Java platform, and is best suited to building Java projects. Ant uses XML to describe the build process and its dependencies, whereas Make uses Makefile format.

SnakeYAML is a YAML processor for the Java Virtual Machine.

Plexus classworlds replaces the native ClassLoader mechanism of Java. It is especially useful for dynamic loading of application components.

This package contains Jackson extension component for reading and writing XML encoded data.

Further, the goal is to emulate how JAXB data-binding works with "Code-first" approach (that is, no support is added for "Schema-first" approach). Support for JAXB annotations is provided by JAXB annotation module; this module provides low-level abstractions (JsonParser, JsonGenerator, JsonFactory) as well as small number of higher level overrides needed to make data-binding work.

The modello test package contains the basis to create Modello generator unit-tests, including sample models and xml files to test every feature for every plugin.

This package provides annotations for security. It provides packages in the javax.annotation and javax.annotation.security namespaces.

This package provides a parser for command line arguments.

This package is a Maven plugin to generate Plexus descriptors from source tags and class annotations.

Tinybundles is all about creating OSGi related artifacts like Bundles, Fragments and Deployment Packages with Java Api. It is very convenient to create such artifacts on-the-fly inside Tests (like in Pax Exam). On the other hand, this library can be a foundation of real end user tools that need to create those artifacts.

OpenJFX is a client application platform for desktop, mobile and embedded systems built on Java. Its goal is to produce a modern, efficient, and fully featured toolkit for developing rich client applications. This package contains UI control classes for the OpenJFX distribution.

OSGi, for Open Services Gateway initiative framework, is a module system and service platform for the Java programming language. This package contains the names for the attributes and directives for a namespace with contracts.

Eclipse Parsson is an implementation of the Jakarta JSON Processing specification.

OSGi, for Open Services Gateway initiative framework, is a module system and service platform for the Java programming language. This package contains utility classes for the configuration of services.

Woodstox is a stax XML API implementation.

Picocli is a framework for building command line applications for the JVM. It supports colors, autocompletion, subcommands, and more. Written in Java, usable from Groovy, Kotlin, Scala, etc.

Java-based solution for accessing, manipulating, and outputting XML data from Java code.

This library is used in the legacy build process of several key frameworks developed by ObjectWeb, among them legacy versions of the ObjectWeb ASM bytecode manipulation framework.

JLine is a Java library for handling console input. It is similar in functionality to BSD editline and GNU readline but with additional features that bring it on par with the Z shell line editor.

PowerMock is a framework that extends other mock libraries such as EasyMock with more powerful capabilities. PowerMock uses a custom classloader and bytecode manipulation to enable mocking of static methods, constructors, final classes and methods, private methods, removal of static initializers and more. By using a custom classloader no changes need to be done to the IDE or continuous integration servers which simplifies adoption.