Commons-dbcp allows you to share a pool of database connections between users. Creating a new connection for each user can be time consuming and even unfeasible when the number of simultaneous users is very large. This package provides a way to share a poole of connections to reduce that load.

This package contains the Python runtime library used with Python generated sources by ANTLR.

OPS4J stands for Open Participation Software for Java. This package contains utilities and extensions related to java.lang.

This package specifies a means for obtaining objects in such a way as to maximize reusability, testability and maintainability compared to traditional approaches such as constructors, factories, and service locators (e.g., JNDI). This process, known as dependency injection, is beneficial to most nontrivial applications.

Many types depend on other types. For example, a Stopwatch might depend on a TimeSource. The types on which a type depends are known as its dependencies. The process of finding an instance of a dependency to use at run time is known as resolving the dependency. If no such instance can be found, the dependency is said to be unsatisfied, and the application is broken.

OSGi, for Open Services Gateway initiative framework, is a module system and service platform for the Java programming language.

This package provides the native library for jansi, a small Java library that allows you to use ANSI escape sequences to format your console output.

Plexus interpolator is a modular, flexible interpolation framework for the expression language style commonly seen in Maven, Plexus, and other related projects.

It has its foundation in the org.codehaus.plexus.utils.interpolation package within plexus-utils, but has been separated in order to allow these two libraries to vary independently of one another.

Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object. Gson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of.

Logback is intended as a successor to the popular log4j project. This module can be assimilated to a significantly improved version of log4j. Moreover, logback-classic natively implements the slf4j API so that you can readily switch back and forth between logback and other logging frameworks such as log4j or java.util.logging (JUL).

This package is the jaxb annotations module for jackson.

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.

Adobe's Extensible Metadata Platform (XMP) is a labeling technology that allows you to embed data about a file, known as metadata, into the file itself. The XMP Toolkit for Java is based on the C++ XMPCore library and the API is similar.

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 a library of matcher objects (also known as constraints or predicates) allowing match rules to be defined declaratively, to be used in other frameworks. Typical scenarios include testing frameworks, mocking libraries and UI validation rules.

java-native-access-platform has cross-platform mappings and mappings for a number of commonly used platform functions, including a large number of Win32 mappings as well as a set of utility classes that simplify native access.

Modello XML Plugin contains shared code for every plugins working on XML representation of the model.

Plexus-cipher contains a component to deal with encryption and decryption.

Although the java.net package provides basic functionality for accessing resources via HTTP, it doesn't provide the full flexibility or functionality needed by many applications. HttpClient seeks to fill this void by providing an efficient, up-to-date, and feature-rich package implementing the client side of the most recent HTTP standards and recommendations.

OPS4J stands for Open Participation Software for Java. This package contains utilities and extensions related to resolving properties from different sources.

This package contains the base build API for maven and a default implementation of it. This API is about scanning files in a project and determining what files need to be rebuilt.

This package provides the Eclipse Java core batch compiler.

This package contains core low-level incremental (streaming) parser and generator abstractions used by the Jackson Data Processor. It also includes the default implementation of handler types (parser, generator) that handle JSON format.

This package provides an API for caching accessed HTTP resources.

This package contains the parent pom for projects from ow2.org, including java-asm.