Jakarta Annotations defines a collection of annotations representing common semantic concepts that enable a declarative style of programming that applies across a variety of Java technologies.

This package provides the Java development kit OpenJDK.

Java Compiler Compiler (JavaCC) is the most popular parser generator for use with Java applications. A parser generator is a tool that reads a grammar specification and converts it to a Java program that can recognize matches to the grammar. In addition to the parser generator itself, JavaCC provides other standard capabilities related to parser generation such as tree building (via a tool called JJTree included with JavaCC), actions, debugging, etc.

HawtJNI is a code generator that produces the JNI code needed to implement Java native methods. It is based on the jnigen code generator that is part of the SWT Tools project.

Logback is intended as a successor to the popular log4j project. This module lays the groundwork for the other two modules.

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

TreeLayout creates tree layouts for arbitrary trees. It is not restricted to a specific output or format, but can be used for any kind of two dimensional diagram. Examples are Swing based components, SVG files, etc. This is possible because TreeLayout separates the layout of a tree from the actual rendering.

BeanUtils provides a simplified interface to reflection and introspection to set or get dynamically determined properties through their setter and getter method.

OSGi, for Open Services Gateway initiative framework, is a module system and service platform for the Java programming language. This package contains a factory for JDBC connection factories. There are 3 preferred connection factories for getting JDBC connections:

• javax.sql.DataSource;

• javax.sql.ConnectionPoolDataSource;

• javax.sql.XADataSource.

OSGi, for Open Services Gateway initiative framework, is a module system and service platform for the Java programming language. This package contains an interface for a function that accepts a single argument and produces a result.

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

The Daemon package from Apache Commons can be used to implement Java applications which can be launched as daemons. For example the program will be notified about a shutdown so that it can perform cleanup tasks before its process of execution is destroyed by the operation system.

This package contains the Java library. You will also need the actual binary for your architecture which is provided by the jsvc package.

This is a part of the Apache Commons Project.

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.

The JavaMail API provides a platform-independent and protocol-independent framework to build mail and messaging applications.

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 base classes for the OpenJFX distribution.

This package provides an implementation of the OSGi Core specification.

This package contains runtime libraries for Xbase languages such as Xtend.

QDox is a high speed, small footprint parser for extracting class/interface/method definitions from source files complete with JavaDoc @tags. It is designed to be used by active code generators or documentation tools.

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.

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.

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.

This package contains a clean definition of JPA API intended for use with DataNucleus JPA since the JCP haven't provided an official JPA API jar. See http://java.net/projects/jpa-spec/downloads for the specification used to generate this API.

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.

Commons VFS provides a single API for accessing various different file systems. It presents a uniform view of the files from various different sources, such as the files on local disk, on an HTTP server, or inside a Zip archive.