Amber Archer
Includes classfile parser and writer, reloading classloader, UNIX syslog client protocol, an asynchronously updated Map, and cache and pool framework support. [Open source, GPL]
url: www.amberarcher.org/
Applicet
Framework for Applets and Applications. It replaces java.applet.Applet as superclass and includes easy-to-use Internationalization support. [Commercial/Freeware]
url: users.belgacombusiness.net/arci/
Ataraxia
A generic internet gaming framework in Java providing a complete client/server and peer to peer networking and messaging layer and a modular game generation toolkit with particular effort on the card games. [Open source, GPL]
url: ataraxia.sourceforge.net/
BaseSys
A collection of Java packages. Over 100 classes among 11 packages offering from simple sort Vector to complex consistent framework for managing nested data structures independent from the data source. [Commercial]
url: www.thesdc.com/basesys/
Bluefish Rules Engine
Simple Java/XML rules engine suitable for personalization, workflow, and business rules. [Open Source]
url: bfre.sourceforge.net/
Byte Iterator class
Allows treating a byte array as a file. [Open Source, GPL]
url: www.theorem.com/java/ByteIterator.java
Coroutine Package in Java
An implementation of coroutines using Java 1.0 and threads - ported from a C version. [Freeware]
url: www.cs.utah.edu/~gback/process/
CreditCardPack
Provides EJB, GUI and non GUI components related to credit card data and data validation. By Keyoti Software.
url: www.keyoti.com/products/creditcardpack/
Flux, the Enterprise Job Scheduling Component
Performs job and task scheduling in Java and Java 2 Enterprise Edition (J2EE) environments [Commercial]
url: www.simscomputing.com/products/flux/
GenerationJava
Generic collection of Java support classes. [Open Source]
url: www.generationjava.com/projects/GenJavaCore.shtml
ICEsoft
ICEbrowser (HTML component for internet browsing in Java), ICEbox (a mail component), ICEtoolkit (a GUI toolkit based on lightweight AWT components) and ICEssl (a module provides support for secure networking over the Internet, and full support for both SSL 2.0 and SSL 3.0 protocols). [Commercial, trial versions]
url: www.icesoft.com/
ILOG JRules
A business rule engine class library.
url: www.ilog.com/products/rules/engines/jrules/
Jakarta Commons
Collection of open source reusable Java components from the Apache/Jakarta community.
url: jakarta.apache.org/commons/
Java Addition to Default Environment (JADE)
Customizable XML support, generic Matrix class, and automatic error calculation. [Open Source, LGPL]
url: jade.dautelle.com/
Java Caching Service
Implementation of the JSR-107 JCache API. Its aim is to provide an open source alternative to commercial jcache implementations and deliver a fast distributed caching mechanism for java and j2ee. [Open source, LGPL]
url: jcache.sourceforge.net/
Java Collection Framework Toolbox
Utility classes for the java collections framework. [Open source, GPL or LGPL]
url: molaepipe.sourceforge.net/
Java Generic Libraries (JGL)
Class libraries that extend JDK libraries, providing many commonly-used algorithms and data structures. By Recursion Software, Inc. [Commercial]
url: www.recursionsw.com/products/jgl/jgl.asp
Java Printing Library
This library adds a higher layer of abstraction to the standard Java print API. It has an opened architecture and simplifies the printing of complex components (e.g. tables) and reports. An interactive print preview is also included.
url: www.netcat.li/java-report-printing-library/index.h...
Java Web Browser and XML Viewer
Clue Web Browser Components power Java applications to display HTML. HTML-XML Dual Viewer help developers to display both HTML and XML with a single Java component. [commercial]
url: www.netcluesoft.com/top.php3?cat=base&sub=home
JavaThis Utilities
Java class library. The main objective is to provide a cross platform, multi-language set of utilities for use with Java applications.
url: sourceforge.net/projects/jtutilities/
JBeans
A complete re-implementation of the java.beans packages. This project builds on the deficiencies of the Sun implementation to provide developers with a set of tools that can be used in everyday practice. The JBeans project provides more support for getting and setting bean properties, type conversion, nested properties, indexed properties, and full JavaBeans. [Open source, LGPL]
url: jbeans.sourceforge.net/
JBrix Java Components
Open-source java libraries, in particular GUI, speech-recognition, and XML related components.
url: www.jbrix.org/index.html
JDollars
A Java class library for credit card transaction processing. [Open source, BSD License]
url: jdollars.sourceforge.net/
JDring - Java Alarm Scheduler
Task scheduling system for Java, similar to Unix cron and at daemons. Fires events at specified times. Alarms are added dynamically in any order and can be one-shot or repetitive. [Open Source, LPGL]
url: webtools.dyade.fr/jdring/
JET API
Java libraries and Java Beans providing access to 3270 and 6530 mainframe hosts.
url: www.platypuspartners.com/jetapi/jetapi.html
JFastTemplate
A Java package that enables separating of HTML from Java code when developing internet / servlet applications. [Freeware]
url: www.axec.sk/java/
JFreeReport
A Java class library for generating reports. It provides a flexible printing functionality for Java applications and supports output to Printers and PDF, Excel, HTML and XHTML, PlainText, XML and CSV files. [Open source, LGPL]
url: www.jfree.org/jfreereport/
JGraphT
A class library that provides mathematical graph-theory objects and algorithms. JGraphT supports a rich gallery of graphs and is designed to be powerful, extensible and easy to use. [Open source, LGPL]
url: jgrapht.sourceforge.net/
JMAC
A Java implementation of Monkey's Audio Compression decoder. It is a Java library that decodes, converts and plays Monkey's Audio files (.MAC, .APL, .APE) in real time. JMAC doesn't need JMF. It runs under J2SE. [Open source, LGPL]
url: jmac.sourceforge.net/
JRoots
Java Application Framework for business development. [Freeware]
url: www.voodoosoft.de/
JSDL (Java for SDL)
A binding for SDL (Simple DirectMedia Layer) written in java. Now you can use SDL and still program with Java. [Open source, LGPL]
url: jsdl.sourceforge.net/
JTemporal
A framework of components providing functionality for time related applications (for the moment instant, period, mediators managing temporal associations). [Open source, LGPL]
url: jtemporal.sourceforge.net/
JThreadKit
Multithreading collection that provides common wrappers and synchronized implementations. [Commercial w/ demo]
url: www.jthreadkit.com/
JViewPro
Report generator and print preview JavaBean.
url: www.hexatech.com/jviewpro.html
JWAM Framework
Java-based object-oriented framework for interactive business applications. By APCON WPS. [Framework is commercial; other components are open source, BSD-like]
url: www.jwam.de/
jX4
Java-based object oriented platform for MUDs and other modular, possibly distributed applications. [Open Source]
url: x4.dridus.com/jx4/about.php
Lava Rocks
Utilities such as printf, array manipulation, console mode dialogs, file management, text, and DES crypto. [Commercial]
url: sharkysoft.com/software/java/lava/
Mandarax
A Java class library for deduction rules. It provides an infrastructure for defining, managing and querying rule engine bases. [Open source, LGPL]
url: www.mandarax.org/
Mango
A Java library consisting of a number of iterators, algorithms and functions, loosely inspired by the C++ Standard Template Library. [Open source, LGPL]
url: www.jezuk.co.uk/cgi-bin/view/mango
Marauroa
A Java framework for creating online multiplayer games. [Open source, GPL]
url: marauroa.sourceforge.net/
MD5 Hashing Class/Utility
Computes the MD5 hash of arrays of bytes. Can also be used in command-line mode. [Open Source, Public Domain]
url: www.jonh.net/~jonh/md5/MD5.java
The metaXa Project
A meta architecture for the Java virtual machine.
url: www4.informatik.uni-erlangen.de/Projects/PM/Java/
Millstone UI library
A user interface library for development of networked Java applications. It provides a terminal independent component model that can be adapted to different terminal types and user interface themes. [Open source, LGPL]
url: millstone.org/
My Java Tools
General purpose Java tools libraries: Lib (Objects, Strings, Files, FileFormat, Web, Tools, ZipInput); run - a Java application that runs code from a URL; jsp - Universal JSP turns JSP language into Macro; Practical XML - a very simple XML library.
url: myjavatools.com/
NovoSoft UML Library
Provides the following services: implementation of complete UML 1.3 physical metamodel, easy to use interfaces, event notification, undo/redo support, reflective API, XMI loading/saving. [Open Source, LGPL]
url: nsuml.sourceforge.net/
Open Geospatial Datastore Interface (OGDI) for Java
A simple API that facilitates connectivity with various geospatial information data formats and/or products.
url: www.globalgeo.com/mapfusion/ogdi.asp
Orbital library
A class library providing object-oriented representations and algorithms for logic, mathematics and artificial intelligence. It comprises theorem proving, computer algebra, search and planning, as well as learning algorithms.
url: www.functologic.com/orbital/
Package util.concurrent
This package provides standardized, efficient versions of utility classes commonly encountered in concurrent Java programming. It mainly consists of implementations of a few interfaces. [Open Source, Public Domain]
url: gee.cs.oswego.edu/dl/classes/EDU/oswego/cs/dl/util...
PooliT
Generic, extensible object-pooling library to cut down on object creation and garbage collection, thus improving performance. [Open Source, LGPL]
url: www.ascent-phase.org/projects/poolit/
PortAudio
A cross platform audio I/O library. [Open source]
url: www.portaudio.com/
Primitive Collections for Java
A collections framework for primitive Java types. The framework supports all primitive types and includes bridges to the standard Java Collections Framework. [Open source, LGPL]
url: pcj.sourceforge.net/
Programmer's Friend
Java utility libraries for text, IO, XML, database. Online javadocs. [Open source]
url: www.programmers-friend.org/
Protomatter
A collection of (hopefully) useful Open Source Java classes, including Syslog, JDBC Connection Pool, PAS - a lightweight application server framework, Object Pooling Framework. Also Base64 encoder/decoder, blocking queues, work queues, mutex locks utility classes. [Open source, LGPL]
url: protomatter.sourceforge.net/
RealObjects Edit-on Pro
A WYSIWYG editor applet/component. Provides word processor-like features, like a spelling checker, for XHTML markup creation.
url: www1.realobjects.de/
Side of Software Java Libraries
Offers libraries for the Java platform, such as dated collections, print preview, report visualization, and an OODB. [Commercial]
url: www.sideofsoftware.com/
simpleJ
A collection of easy to use multi-purpose Javabeans providing commonly used methods for handling I/O, arithmetic, and general commonly used algorithms used in computer science. [Open source, BSD License]
url: simplej.berlios.de/
Smartproxy
A library to dynamically create proxy classes and instances. Features an introduction to the library, download links and some documentation. [Open source, BSD License]
url: www.ggtools.net/smartproxy/
Style Report Pro
An advanced printing/report generation package for Java applications and applets. The core of Style Report/Pro is a Java class/Java bean library with a powerful API. It support PDF/RTF/HTML generation, charting, grouping/summarization and high performance, high resolution printing drivers. [Commercial]
url: www.codework.com/stylepro/product.html
Talkative
Set of Java, COM and JavaScript libraries which together can provide connectivity between all kinds of applications. [Open Source, GPL]
url: members.tripod.com/tanmaykm/work/download/talkativ...
A Text User Interface for the Java AWT
Renders Java 1.1 GUIs written in AWT that do not implement custom graphics to a text console. [Open Source]
url: www.bmsi.com/tuipeer/
ThreadWorks
A Java API that facilitates development and support of multi-threaded applications.
url: www.dvt.com/
Universal Resource Library
An extendable implementation of the NetBeans Filesystems API providing transparent access to local, JAR, CVS, XML and FTP filesystems. [Open Source, MPL-like]
url: openide.netbeans.org/fs/Library.html
Verge Archemedia Labs
Offers Tempo a software component that performs job scheduling and job queuing for J2EE applications. [Commercial]
url: www.vergenet.com/
The VNet Class Library
Collection of useful Java classes, including an XML generator and a simple editor. [Open Source, GPL]
url: web.vee.net/projects/vnetclasslibrary/
WEBsina
JLicense is a Java utility library for creating and validating license keys. AuthToken is Java utility library for generating and validating authentication tokens (i.e., an encrypt string). [Freeware, pay for sources]
url: www.websina.com/products/
Windward Reports
A J2EE report engine in Adobe PDF, Word RTF, html with css, html 3.2 (no css), ascii text formats. Servlet, JSP examples with sources. [Commercial]
url: www.windwardreports.com/
XXL: eXtendable and fleXible Library
Provides a powerful collection of index-structures, query operators and algorithms facilitating the performance evaluation of new query processing developments. [Open Source, LGPL]
url: dbs.Mathematik.uni-marburg.de/research/projects/xx...
