The JUnitParams project adds a new runner to JUnit and provides much easier and readable parametrised tests for JUnit.

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.

The Jakarta-ORO Java classes are a set of text-processing Java classes that provide Perl5 compatible regular expressions, AWK-like regular expressions, glob expressions, and utility classes for performing substitutions, splits, filtering filenames, etc. This library is the successor of the OROMatcher, AwkTools, PerlTools, and TextTools libraries originally from ORO, Inc.

APT stands for Annotation Processing Tool. APT provides a means for generating files and compiling new Java classes based on annotations found in your source code.

TLA+ is a high-level language for modeling programs and systems---especially concurrent and distributed ones. It's based on the idea that the best way to describe things precisely is with simple mathematics. TLA+ and its tools are useful for eliminating fundamental design errors, which are hard to find and expensive to correct in code.

The following TLA+ tools are available in this distribution:

• The Syntactic Analyzer: A parser and syntax checker for TLA+ specifications;

• TLC: A model checker and simulator for a subclass of "executable" TLA+ specifications;

• TLATeX: A program for typesetting TLA+ specifications;

• Beta test versions of 1-3 for the TLA+2 language; and

• The PlusCal translator.

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 contains a set of Java annotations which can be used in JVM-based languages. They serve as an additional documentation and can be interpreted by IDEs and static analysis tools to improve code analysis.

This package provides versions of the JavaMail API implementation, IMAP, SMTP, and POP3 service providers, some examples, and documentation for the JavaMail API.

EasyMock is a Java library that provides an easy way to use mock objects in unit testing.

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.

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

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

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

This package provides the Java development kit OpenJDK.

jsch-agent-proxy is a proxy program to OpenSSH's ssh-agent and Pageant included in Putty. This component contains the code for a proxy to ssh-agent.

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 Byte Code Engineering Library (Apache Commons BCEL) is intended to give users a convenient way to analyze, create, and manipulate (binary) Java class files. Classes are represented by objects which contain all the symbolic information of the given class: methods, fields and byte code instructions, in particular.

Such objects can be read from an existing file, be transformed by a program (e.g. a class loader at run-time) and written to a file again. An even more interesting application is the creation of classes from scratch at run-time. The Byte Code Engineering Library (BCEL) may be also useful if you want to learn about the Java Virtual Machine (JVM) and the format of Java .class files.

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.

Eclipse LSP4J provides Java bindings for the Language Server Protocol and the Debug Adapter Protocol. This package contains its JSON-RPC implementation's debug protocol.

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.

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

Xerial is a set of data management libraries for the Java programming language. The ultimate goal of the Xerial project is to manage everything as database, including class objects, text format data, data streams, etc.

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.

Plexus-archiver contains a component to deal with project archives (jar).