HLRnet.com: Technologie: Internet: Java

Java

Informatie

Cafe au Lait
Free Programing Resources: Java
Jars
Java.net: Java Technology Collaboration
JavaFX: RIA (Rich Internet Applications) in Java
JavaPolis: yearly conference
JavaSide
Javasoft
Java Virtual Machine
Javawoman
JavaWorld
Java-Zone
Mindview: Thinking in Java

Cursussen

Tools

Apache Geronimo is an easy-to-use implementation of the Java 2 Platform, Enterprise Edition (J2EE). As a full application server, Geronimo provides support for Java Servlet and JavaServer Pages through either Tomcat or Jetty, JMS through ActiveMQ, EJB through OpenEJB, Java Persistence API through OpenJPA, ESB through ServiceMix, and more. It is also combined with enterprise grade configuration and management. Geronimo 1.1.1 has passed the J2EE certification test suite and it is officially J2EE certified.
BlueJ: The Interactive Java Environment
db4objects: native Java and .NET open source database engine
Denova: JExpress Cross Platform Java Installer
Drools Helper Integration
Earthweb (dat Gamelan heeft overgenomen)
Eclipe: open source Java IDE
Install4J: multi-platform Java installer builder that generates native installers and application launchers for Java applications
IntelliJIDEA: Java IDE
Java Decompiler
JavaServer Faces technology simplifies building user interfaces for JavaServer applications
Java SOS: a set of configurable Java servlets for fast site building, including Forums, Chat, and Calendar servlets, etc.
Java Supplements: a free library of utility classes which extends and enhances the functionality of the classes
JBoss
JDemo provides a framework for demonstrating code for interactive testing. It features many convenience classes and methods that make implementing demos very easy
JustFormsPDF : a Java class library for filling or editing interactive PDF forms on-the-fly
M7 NitroX J2EE IDE
Mango is a Java library consisting of a number of iterators, algorithms and functions, loosely inspired by the C++ Standard Template Library.
Naked Objects: open source application development platform
Netbeans.org
The open source NetBeans IDE is a world-class development environment written in Java. It can be used to develop code in Java, HTML, XML, JSP, C/C++ and other languages. The IDE is modular, and there is a huge variety of commercial and free extensions to it to support various technologies.
Sun Java Platform, Standard Edition
YourKit: JavaProfiler

Code

CodeGuru
Codetoad
HotScripts
Java Applet Collection (Gokhan Dagli)
Java Packages (Stuttgart)
Matt´s Script Archive
ScriptSearch: Java
w100w.com: Scripts ASP, C/C++, Perl, PHP, Java, JavaScript

Applets

JavaPowUpload (commercial)

Gebruikers

BeJUG Portal
Website of the Belgian Java User Group, with events, articles and forums
Java VB Development Center: for VB programmers who want to learn Java

Bedrijven

BEA
ONJava: Enterprise Java
SFS Software (CoffeeShop)
Step Ahead: AnFX / animation tool for Java
SUN heeft alles: de Java JDK, documentatie, voorbeelden, tutorials...
Transtools Caravel: migrate RPG and COBOL applications to Java

Other open source projects
- Abbot is a framework for testing Java GUIs. It lets you launch an application or GUI component, play back user actions on it, and examine its state. Tests may be coded or scripted. The editor supports recording user actions into a script, exploring the component hierarchy, running the script, and other features you'd expect from a script editor. Test scripts are JUnit extensions.
- Antmod is a build management, release management, and repository management tool. Its implementation is an Ant-based extensible engine for retrieving, versioning, building, and deploying code to and from Subversion or CVS. It standardizes build files for Java projects and provides build plugins for various tasks. It also standardizes tagging and branching for both CVS and Subversion, and its module and repository management can also be used for non-Java projects. It greatly speeds up Java software development, promotes reuse of Java software, and standardizes the build-test- release cycle.
- The goal of the Apache Tomcat Project is to provide commercial-quality server solutions based on the Java Platform that are developed in an open and cooperative fashion. Tomcat 3.x is an implementation of the Java Servlet 2.2 and JavaServer Pages 1.1 Specifications. Tomcat 4.x is an implementation of the Java Servlet 2.3 and JavaServer Pages 1.2 Specifications, and is a re-implementation of the Tomcat servlet engine from the ground up. The current branch, Tomcat 5.x, is an implementation of the Java Servlet 2.4 and JavaServer Pages 2.0 specifications, with increased attention to scalability, reliability, and management
- aptframework is a Java/Swing framework for developing large-scale business/enterprise rich-client database-driven applications.
- Asterisk-Java provides a set of Java classes that allow you to easily build Java applications that interact with an Asterisk PBX Server. It supports the FastAGI protocol and the Manager API.
- aSVERD (A Scaleable Vector Entity Relationship Diagram) is a simple Java system (3 classes) for generating entity relationship diagrams (ERDs) from an existing database as scalable vector graphics (SVG). The system is run from the command line to generate the initial SVG file. No attempt is made to lay out the tables other than as a grid. The diagram can be round-trip updated against the database and table positions, notes, etc. will be preserved. Connecting lines between the tables are generated by JavaScript in the SVG, rather than being just “lines”. This way, they stay connected to the tables with which they are associated, being redrawn each time the diagram is displayed.
- Barista is a Java [dis]assembler and class file manipulation library. It is part of the OCaml-Java project.
- Barbecue is a Java barcode generator. It provides barcode generation for Swing/AWT, printing, and Web sites. Barcodes can be generated as (J)Components, JPEGs, and SVG
- Blitz is an open source JavaSpaces implementation designed to ease development and deployment of JavaSpaces technology. It is Jini 2.0 enabled, and uses established VM principles. It also implements smart indexing, tuneable persistence, and active/passive lease cleanup. It is designed with experimentation and expansion in mind.
- Bonita is a J2EE workflow system that provides out-of-the-box workflow functionalities for defining and running business processes such the XPDL workflow definition module, the J2EE based workflow engine, the JMS based awareness infrastructure, or interoperability services.
- BuildProcess is a complete J2EE deployment toolbox. It provides different tools to help the J2EE administrator in his daily job. The main project is AutoDeploy, which automaticaly deploys J2EE applications on different targeted application servers. It's a complement of continuous integration tools such as CruiseControl or AntHill. BuildEraser can delete files on different filesystems, local or remote (FTP, WebDAV, CIFS, and SMB).
- C# Java Virtual Machine is a tiny implementation of the Java VM, including simple native classes. It written using the C# language. The VM is very easily expandable by writing additional native or Java classes.
- Cacheonix is a reliable coherent distributed cache and in-memory data grid for Java. It provides cache partitioning for low-latency operations, load balancing, and data replication for high availability.
- Cayenne is a free object-relational persistence framework written in Java. Its goal is to make development of database Java applications faster and more consistent with the Object Oriented Programming concept. Some of the ideas used in Cayenne have been inspired by the persistence mechanism of NeXT's (and now Apple's) WebObjects application server.
- Celtix delivers a Java enterprise service bus (ESB) runtime and set of extensibility APIs, simplifying the construction, integration, and flexible reuse of technical and business components using a standards-based, service-oriented architecture.
- ckkl-core is a collection of Java classes developed for personal projects and research. Its implemented features include but are not limited to Java type handling with aliases and equality testing, easy discovery and accessors for JavaBeans properties, functional-oriented collections (list with map(), filter(), and others), and an API to support an easy toString() implementation even for the most complex cases.
- Clara is a class viewer tool for Java and C++ that draws diagrams for a given class. It is highly interactive and allows all types found in the class to be filtered or turned into links. It is useful for quickly finding and accessing source files.
- Cobertura is a Java tool that calculates the percentage of code accessed by tests. It can be used to identify which parts of your Java program are lacking test coverage. It is based on jcoverage.
- codavaj is Javadoc in reverse: a seemingly useless reverse engineering tool to transform HTML Javadoc into Java source file skeletons (or a reflection API) like internal representation. You can: convert an entire local Javadoc tree into Java source code; download an entire remote Javadoc tree via HTTP(S); and derive a Reflection-like API based on information derived from a Javadoc tree. It is provided as a Java command line tool.
- The Coldtags suite is a collection of custom JSP tags that provides 90+ custom JSP tags for common programming tasks faced by JSP developers. It also includes custom tags similar to the Web controls in the .NET framework.
- CSVBeans is a Java library that allows you to map CSV files with Java objects. This library will help you to parse or build CSV files in an elegant way. Its use is similar to tools like Hibernate, except that it works with Java beans and CSV files. You no longer need to write all the plumbing code that parses or builds a CSV file and translates its contents to Java objects.
- DBSight is a J2EE search platform for rapidly developing search engines on any relational database. It's scalable, fast to develop, and fast to search. It runs on any JDBC-supported relational database. It can work on any new systems or old legacy systems that need full-text search, without changing existing systems. It's based on the high-performance Lucene API. It has a Web UI for configuring data retrieval, content indexing, and displaying templates. It can also serve as a Lucene learning tool or RAD tool. The search results are rendered by Velocity as HTML, XML Web service, CSV, or anything you want.
- dinamica is a powerful and very easy to use framework for J2EE Web development. It's newbie friendly and was built from scratch to be a high productivity framework for building business-oriented Web applications, whether they are large-scale or smaller ones. It stands apart from other Java MVC frameworks because it incorporates innovative programming techniques that boost productivity without sacrificing good object oriented design practices. Most common programming tasks can be completed without writing a single line of code.It uses Servlet API 2.3 and does not require JSP or TagLibs.
- Dfp is a decimal floating point math library for Java. It has higher performance than BigDecimal, and is suitable for embedded devices. It implements most IEEE-854 features and supports trigonometric functions, exponentials, square root, and logarithms.
- DiffJ is a commandline application that compares Java files based on content, not whitespace, comments, or reordering of types, methods, or fields. Its output is based on the Unix program diff, and it also has a "brief" output format for a concise summary of what changed. It can work on directories recursively, looking for matching filenames, like "diff -r dir0 dir1". It is primarily for developers refactoring and reformatting Java code, for which most difference tools tend to produce misleading results regarding the type and extent of changes.
- DWR is a Java open source library that helps developers wanting to write Web sites that include AJAX technology. It allows code in a Web browser to use Java functions running on a Web server as if it was in the browser
- Eclipse is an open source community whose projects are focused on providing an extensible development platform and application frameworks for building software.
- EasyMock provides Mock Objects for interfaces in JUnit tests by generating them on the fly using Java's proxy mechanism. Due to EasyMock's unique style of recording expectations, most refactorings will not affect the Mock Objects. So EasyMock is a perfect fit for Test-Driven Development.
- edtFTPj/PRO is a Java library that performs secure file transfers. It supports FTPS (FTP over SSL), both explicit and implicit modes, and SFTP (FTP via SSH) All major FTP operations are supported, including both active and passive modes. It provides a progress monitor interface, allowing applications to receive progress updates for their file transfers. The library is built on the open source edtFTPj and shares its API.
- EJBCA is a fully functional Certificate Authority in Java using J2EE technology. It builds on the J2EE platform to create a robust, high performance, platform independent, flexible, and component-based CA to be used standalone or integrated in any J2EE app. EJBCA comes with a flexible and powerful Web-based admin GUI.
- Esra is a pure Java library for the interactive analysis of molecular mechanics data. Written with the Java Reflection API (and particularly Jython and Mathematica in mind), it allows you to mangle your data in your favorite scripting language.
- eStruts is a tool that automatically generates Struts applications and JSP pages with action forms, form beans, and other elements that form the skeleton of a Web application.
- EZMorph is simple Java library for transforming an Object to another Object. It supports transformations for primitives, Objects, and multidimensional arrays, compatibility with JDK 1.3.1, and small memory footprint (~60K). It began life as the converter package in Json-lib but became a project on its own.
- fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues for Java with a small memory footprint and fast access and insertion; it also includes a fast I/O API for binary and text files. The classes implement their standard counterpart interfaces (e.g., Map for maps) and can be plugged into existing code. Besides the usual features, fastutil provides reference-based containers (which do not use equals() to compare objects) and linked structures. Most iterators provided by fastutil classes are bidirectional, or even implement the standard list iterator interface.
- FireStorm/DAO is a Java Code Generator that can import existing database schemas (from a SQL script or from a live JDBC connection) and can then generate a complete persistence tier. It generates Java source code and configuration files that developers would otherwise have to write by hand, and that is compliant with the Data Access Object (DAO) design pattern.
- Flatworm is a framework for Java designed to eliminate the need to hand-parse fixed length flat file data. It uses an XML file that describes the format of an input source and breaks the input into beans of the user's choosing. It can handle multiple record types in the same file (using either line length or key field values to determine the correct type), and can support multiple-line records. It can also parse multiple beans out of a single record.
- Free Java is a development environment designed to help beginners write Java programs. Its editor includes syntax highlighting and an undo/redo function. It features a structure panel and a file browser. Compiling and running a program can be done with the push of a single button, and compiler errors are shown clearly. There is also a virtual console to show a program's console output.
- GAJET (Genetic Alrogithm for Java Evolutionary Testing) is an automatic test generation tool for Java that uses a genetic algorithm. It uses EMMA to measure test coverage.
- GlassFish is Sun's reference implementation of a Java EE 2 application server. It is production quality and has very good performance.
- GNU Classpath (essential libraries for Java) is a project to create free core class libraries for use with virtual machines and compilers for the Java programming language. It includes all native methods and core classes necessary for a completely functional execution environment.
- Grails is a full stack framework for developing Web applications on the Java platform. It builds on the concepts introduced by frameworkds like Rails, Django, and TurboGears, but builds on established Java technologies like Spring and Hibernate. It includes an easy-to-use object relational mapping (ORM) layer, an expressive view technology, a controller layer, a command line scripting environment, an embedded Jetty container which is configured for on-the-fly reloading, dependency injection, support for internationalization (i18n), and a transactional service layer.
- Greenfoot is an integrated development environment that makes it easy to write games and simulations in Java. It comes with a broad range of demo scenarios and documentation that gets newcomers started very quickly. Greenfoot may be used to learn or teach programming, or just to write a cool game and maybe put it up on a Web site. (it can export the game to a Web page). It was originally developed for school age learners, but is now used by all age groups.
- H2 Database Engine is an SQL database engine written in Java that implements the JDBC API. Embedded, server, and clustering modes are available. A browser based console application is included. The database has strong security features. Disk based and in-memory databases and tables are supported.
- The Hecl Programming Language is a high-level scripting language implemented in Java. It is intended to be small, extensible, extremely flexible, and easy to learn and use. It is intended as a complement to the Java programming language, not a replacement. As such, it tries to do well what Java doesn't, and leaves those tasks to Java for which it is best suited. It is also easy to add Hecl to Java, or write new Hecl commands in Java. It aims to be a very immediate language you can pick it up and start doing useful things with it quickly.
- HelpSetMaker allows creation and maintenance of help documents. It is especially tailored to the needs of the JavaHelp online help system for Java programs. Help texts are written in a very simple descriptive language, and the resulting documents are immediately shown on the screen. Links, images, and style sheets can be included and managed. It can also produce HTML and LaTeX source output.
- HORRORss is a set of Java classes to parse RSS files. It works with simple objects (POJOs) which represents the main items of RSS files like "channel", "image", and "item". The main features are ease of use, compatibility with all RSS/RDF specifications, and compatibility with GNU Classpath.
- IBM JDK for Linux is a software development kit that can be used to build Java applications. It includes development tools, the IBM Java Runtime Environment for Linux, sample code and Java source files.
- iCal4j is a Java API incorporating an iCalendar parser, model, validator, and outputter.
- iText is a library that contains classes to generate documents in the Portable Document Format (PDF), XML, HTML, and RTF. It can also parse XML documents and convert them into any of these formats. Pages of existing PDF files can be imported and copied to new PDF documents.
- Itzam/Java is a pure Java reimplementation of the Itzam embedded database engine, and it is 100% interoperable with files created by Itzam/Core. Since Itzam/Core is the basis of wrappers written in languages such as C++ and Python, Itzam/Java is compatible with those language libraries as well.
- IzPack is a powerful Java installer builder. It is able to create lightweight and modular installers. You have the choice of the installer panels you want to use (some can do the same job, so that you can select the one you prefer), and you even have the choice of the kind of installer that you want to use. IzPack doesn't use any portion of native code, it is designed to be fully independent from the operating system that runs it. It is very easy for the end user with a properly installed JVM to use an installer made with IzPack, since a single "java -jar installer.jar" will launch it.
- Jackess is a pure Java library for reading and writing MS Access databases.
- The Java Application Monitor (JAMon) is a free, simple, high performance, thread safe, Java API that allows developers to easily monitor production applications. JAMon can be used to determine application performance bottlenecks, user/application interactions, and application scalability. JAMon gathers summary statistics such as hits, execution times (total, average, minimum, maximum, standard deviation), and simultaneous application requests. JAMon statistics are displayed in the sortable JAMon report.
- JasperReports is a Java reporting library. XML report templates are used to generate ready to print documents using data from customizable data sources, including JDBC. The output can be delivered to the screen, printer, or stored in PDF, HTML, XLS, RTF, CSV, and XML format.
- Java2Excel is a simple Java library to allow the creation of Excel files based on Java Collections. Each element of the collection goes in a row and the columns are based on the properties you define through an XML config file.
- The Java Algebra System (JAS) is an object oriented, type safe, multi-threaded approach to computer algebra. JAS provides a well designed software library using generic types for algebraic computations implemented in the Java programming language. The library can be used as any other Java software package, or it can be used interactively or interpreted through a Jython front end. The focus at the moment is on commutative and solvable polynomials, Groebner bases, and applications.
- The Java Base64 library enables your Java application to encode and decode base64 strings and streams.
- The Java File Copy Library provides an easy and powerful API for file copying operations. It lets the user define a batch of copy jobs with regular expressions and can use a Swing Component to show the overall copying progress.
- JavaDesktopEngine is a Java engine capable of running several programs within the same VM instance, without launching lots of VMs for simple processes. Services exposed can be accessed by trivial XML-RPC calls.
- Javalogic is a library that leads to the creation of a visual implementation of application logic. This will allow the software developer to not worry about changing code against any rule modification. The software developer can delegate this to his customer, supplying him with a simple construction window.
- Java Parallel Processing Framework - JPPF is a computational grid framework for Java focused on performance and ease of use. It provides a set of tools and APIs to enable the parallelization of CPU intensive applications, and distribute their execution over a network of heterogenous nodes. It features platform independence thanks to Java 1.5, does not require you to deploy your application classes to a server, scales up to millions of nodes, has a built-in fail-over mechanism on all the framework's components, and has a monitoring and administration GUI tool to enable remote monitoring of the server health and server shutdown/restart operations.
- Java Serialization to XML (JSX) translates between Java and XML, making it possible to search, test, profile, and audit your object data with ordinary XML and text processing tools. Your data can be migrated to new application versions, to C++, and to other applications by transforming the XML. Unlike other Java XML serializers, JSX is accurate for all objects.
- Java SOS is a set of configurable Java servlets for fast site building, including Forums, Chat, and Calendar servlets, etc.
- Java SQL Admin Tool is entirely written in Java. It uses Swing GUI Components and JDBC to connect to databases. It has been succesfully tested with MySQL, InstantDB, Oracle, Empress, and PostgreSQL. You can have a tree view of the RDBMS or pick a single instance to have a look at its metadata. It allows you to create, modify, and drop tables and to create indices on a table. The dynamic form makes it easy to enter data into a certain table, and the guided query makes it easy to retrieve data from a table and to export it. Java developers will probably enjoy the code generator doing an OO relational wrapper and a swing GUI for them. You can also export and import data and transport it from one DBMS to another.
- Java Supplements is a free library of utility classes which extends and enhances the functionality of the classes provided by the normal Java API. It provides robust and reliable code for doing many of the tasks which Java developers commonly find themselves writing code for again and again, such as catching InterruptedExceptions on Thread.sleep() calls or reading files into a byte array.
- The JAVE (Java Audio Video Encoder) library is a Java wrapper on the ffmpeg project. Developers can take take advantage of JAVE to transcode audio and video files from one format to another. For example, you can transcode an AVI file to an MPEG one, you can separate and transcode audio and video tracks, and you can resize videos, changing their sizes and proportions. Many other formats, containers, and operations are supported by JAVE.
- jblas is a fast linear algebra library for Java. It is based on BLAS and LAPACK, the de-facto industry standard for matrix computations, and uses state-of-the-art implementations like ATLAS for all its computational routines, making it very fast. It is essentially a lightweight wrapper around the BLAS and LAPACK routines. These packages originated in the Fortran community, which explains their archaic API. On the other hand, modern implementations are hard to beat performance-wise. jblas aims to make this functionality available to Java programmers such that they do not have to worry about writing JNI interfaces and calling conventions of Fortran code
- JCalendar is a Swing component for selecting a date. It is easy to configure, highly customizable, and has an attractive user interface. The distribution includes a demo application so that you can preview your customized component.
- JCite makes it possible to cite snippets of Java source code in your HTML documents (API documentation, for instance). The snippets are copied out of Java class source files, which should be part of the regular build. This guarantees that the cited snippets are always up-to-date. If you cite from unit tests, you even get the guarantee that they still work correctly. Finally, thanks to the excellent Java2Html library, the cited snippets get automatic syntax highlighting.
- JDave is a behavior-driven development framework that provides an easy way to specify the behavior of your Java classes.
- JDumpViewer is a tool for analyzing Java thread dumps.
- Jericho HTML Parser is a simple but powerful Java library allowing analysis and manipulation of parts of an HTML document, including some common server-side tags, while reproducing verbatim any unrecognised or invalid HTML. It also provides high-level HTML form manipulation functions.
- Jess is a fast, light rule engine and scripting environment written entirely in Java. You can build Java software that has the capacity to "reason" using knowledge you supply in the form of declarative rules. It is supplied as a programmer's library, making it ideal for embedding in larger applications. Jess includes development tools built on the Eclipse platform. It is free for academic use and can be licensed for commercial use.
- JEvaluator is a Java class that implements a quick and flexible mathematical expressions parser and evaluator. Complex mathematical expressions can be handled and combined together with virtually no limitations on length and number of used variables.
- Jif (Java + information flow) is a security-typed programming language that extends Java with support for information flow control and access control, both at compile time and at run time. Static information flow control can protect the confidentiality and integrity of information manipulated by computing systems. The compiler tracks the correspondence between information the policies that restrict its use, enforcing security properties end-to-end within the system. After checking information flow within Jif programs, the Jif compiler translates them to Java programs and uses an ordinary Java compiler to produce secure executable programs.
- j-Interop is a Java Open Source library (under LGPL) that implements the DCOM wire protocol (MSRPC) to enable development of Pure, Bi- Directional, Non-Native Java applications which can interoperate with any COM component. The implementation is itself purely in Java and does not use Java Native Interface (JNI) to provide COM access. This allows the library to be used from any Non-Windows platform. It comes with pre- implemented packages for automation. This includes support for IDispatch, ITypeInfo, and ITypeLib. For more flexibility (in the cases where automation is not supported), it provides an API set to directly invoke operations on a COM server.
- JFreeChart is a chart library for the Java platform that supports a wide range of charts including pie charts (2D and 3D), bar charts (horizontal and vertical, regular or stacked, with optional 3D-effects), line charts, XY plots, scatter plots, time series charts, high/low/open/close charts, candlestick plots, Gantt charts, Pareto charts, combination charts, and more. It is suitable for use in applications, applets, servlets, and JSP.
- JGame is a small 2D game engine that runs on any Java 1.2+ platform. It provides a very high-level framework, enabling "classic" type arcade games to be developed with a minimum of code and effort. It is based on sprites with automatic animation and collision detection, and a tile-based background with easy sprite-tile interaction facilities. JGame games can be run as both applications and applets, and can be scaled to any resolution or run full-screen.
- JGraphpad is a free diagram editor for Swing that offers the functionality to create flow charts, maps, and UML diagrams.
- JGui is a collection of useful Java GUI components and utilities. JGui includes a docking windows framework for Swing and AWT; a dynamic tree framework; ThreadManager, which helps to distribute tasks to a number of threads; TLToolTipManager, which shows hidden parts of JTree's and JLabel's cells; JShape, a non-rectangular translucent Swing component; and many more.
- JiBX is a framework for binding XML data to Java objects. It lets you work with data from XML documents using your own class structures. The framework handles all the details of converting your data to and from XML based on your instructions, and performs the translation between internal data structures and XML with very high efficiency while still allowing you a high degree of control over the translation process.
- JICE is an XML-based application construction and configuration tool for Java applications. JICE defines a convenient XML format for describing the configuration of the application objects and provides tools for transforming the XML data into Java instances. JICE can be used in any kind of Java application.
- Jledger is a Java Business Accounting API that consists of invoicing, general ledger, stock/inventory control, and other business APIs that will assist Java developers in building business software with ease. It will take care of the business logic like accounting double entry, Stock Balance and management (FIFO), etc., and seamlessly integrate each part of business operation as a whole.
- JMathLib is a system of mathematical functions designed to be used to evaluate complex expressions and display the results graphically. It can be used either interactively or to interpret script files. It works like Matlab, Octave, and Scilab.
- jMock is a library that supports test-driven development1 of Java2 code with mock objects3.
- JOrtho is a spell checker for Java. The library works with any JTextComponent from the Swing framework and checks as you type. The dictionary is based on the free Wiktionary.org, and applicable for multiple languages. You can select the spell checking language via context menu.
- jPOS is a Java based, production grade ISO-8583 library/framework that can be used to implement financial interchanges, protocol converters, payment gateways, credit card verification clients and servers (merchant/issuer/acquirer), etc.
- JPOX provides transparent persistence of Java objects. It is a fully compliant implementation of the JDO 1.0.1 specification, and additionally implements the whole of the JDO 2.0 specification. It supports persistence to all of the major RDBMS on the market today, allows querying using either JDOQL or SQL, and comes with its own byte-code enhancer. Its 1.1-final release will be Sun's "Reference Implementation" for JDO 2.0.
- jrawio is a Service Provider Implementation for the Java Image I/O API that provides the capability to read images stored in a "camera raw" format. It supports various formats from the major camera manufacturers (e.g. NEF, CRW, CR2, PEF, SRF, MRW) as well as Adobe Digital Negative Format (DNG). It is made of pure Java code and does not require any native library.
- JSAP (Java Simple Argument Parser) not only syntactically validates your program's commandline arguments, but it converts those arguments into objects you specify. There's a pretty big (and growing) list of return types suppored by JSAP, including Integers, Floats, Dates, URLs, and even java.awt.Colors; you can also add your own in a matter of minutes. Cascading configuration files can provide arguments not supplied at the command line, and a custom ANT task is included to generate a JSAP class based on your commandline configuration.
- jSeamless is a UI abstraction layer for Java to allow developers to write code for any platform and any environment (Web, desktop, mobile, etc.) without having to know ahead of time the deployment platform or environment will be.
- JSizer is a tool that shows the size of Java classes in a graph. The graph has nodes with width, height, and color depending on the number of fields, number of methods, and lines of code.
- jsoup is a Java library for working with real-world HTML. It can parse HTML from a URL, file, or string. It can find and extract data, using DOM traversal or CSS selectors. The HTML elements, attributes, and text can be manipulated. It can clean user-submitted content against a safe white-list. jsoup is designed to deal with all varieties of HTML found in the wild, from pristine and validating to invalid tag-soup; jsoup will create a sensible parse tree.
- JSmooth is an EXE wrapper that builds Windows executables that intelligently launch Java applications, either from an embedded jar or from a jar located on the filesystem. It detects any JRE available on the computer, and knows how to set it up to run the application. The JSmooth executable generator is fully implemented in Java, and can therefore integrate a build chain on any system able to run a JVM.
- JSTUN is a STUN (Simple Traversal of UDP (User Datagram Protocol) through NAT (Network Address Translation)) implementation. STUN provides a means for applications to discover the presence and type of firewalls or NATs between them and the public Internet. In the presence of a NAT, STUN can also be used by applications to learn the public Internet Protocol (IP) address assigned to the NAT.
- JSwat is a graphical, stand-alone Java debugger, using the JPDA library. It offers breakpoints with monitors and conditions, colorized source code display, single-stepping, displaying variables, viewing stack frames, and expression evaluation.
- JURPE (Java Universal Role Playing Engine) is a Java API to support the development of computer RPG games based on a skill-based, three dice RPG system. It comes with a small Swing demo featuring a medieval warrior exploring randomly generated 2D dungeons.
- jZeno is a meta-project that integrates a collection of Java libraries to form a ready-to-use Web development environment. The main architectural goal of jZeno is to allow people to create Web applications by using pure Java development as much as possible, largely reducing the need to know technologies like Javascript, HTML, CSS, database-specific SQL, and tons of different APIs.
- jXLS is Java component for exporting data to the Excel file format using XLS templates. It features simple property access notation, complex object graph export, flexible collection export, formula support, charts, macros, and many other Excel features in XLS templates, dynamic outlines, dynamic column hiding, dynamic cell style processing through custom CellProcessors, and JDBC ResultSet export.
- jZebra is a Java applet that allows you to print barcodes, receipts, and more from a Web page. It sends raw print commands to your printer. It has been tested with Firefox, Safari, Internet Explorer, and Opera. It supports parallel, USB, and network printers.
- Kaffe is a free software VM and development environment for programs written in the Java programming language. As an independent implementation, it was written from scratch and is free from all third-party royalties and license restrictions. It comes with GNU Classpath core class libraries, and a highly-configurable virtual machine with a just-in-time (JIT) compiler for enhanced performance. Kaffe integrates the bleeding edge of class library development and associated utilities into one package. It is capable of running Tomcat, Ant, Eclipse, and various other modern applications.
- The Kitikat Java Framework is a powerful but simple Datastore processing framework. A Datastore represents an in-memory copy of data. A program may retrieve the data from a data source, such as a relational database, manipulate the data, and then propagate the updates of the data back to the original data source or to a different data source. Once the data is retrieved, it is a disconnected, data source independent version of the data. A change history of the data is maintained to provide dynamic updates to a data source, and there are several levels of concurrency control provided for multi-user environments.
- L2FProd: Swing has lot of components built in, but still some are missing. This project provides the developer community with these missing components, inspired from modern user interfaces. It provides a PropertySheet component, a collapsible task pane (JTaskPane), a button bar (JButtonBar), a font chooser (JFontChooser), an Outlook Bar (JOutlookBar), and a directory chooser (JDirectoryChooser).
- Launch4j is a cross-platform tool for wrapping Java applications distributed as jars in Windows native executables. The executable can be configured to search for a certain JRE version or use a bundled one, and it's possible to set runtime options, like the initial/max heap size. The wrapper also provides better user experience through an application icon, a native pre-JRE splash screen, a custom process name, and a Java download page in case the appropriate JRE cannot be found. The increase in size of the application is small.
- LazyJ is a rapid development framework for Java-based Web applications. It provides tools to (partially) replace and complement the standard servlet API, a fast templating engine, database connection pool, database-backed sessions, content and data caching, and time-bounded execution. Its sole purpose in life is to make the programmer happy.
- Mantissa is a collection of various mathematical algorithms in Java aimed towards simulation. It features a small set of linear algebra classes, a least squares estimator, some curve fitting classes, several ordinary differential equation integrators (all supporting multiple switching functions and dense output), vectors and rotations in a three dimensional space, algebra-related classes like rational and double polynomials, various orthogonal polynomials, some optimization algorithms using direct search methods, and more.
- Moose is a simple, slick XML marshalling framework for Java. It uses annotation-driven mappings, which means no more separate mapping files. It natively handles namespaces. The Moose framework will generate an XSD from your mapping
- Morena is a Java framework that allows a Java program to acquire an image from a scanner or camera.
- N-genes is a Java framework and application for both genetic programming and genetic algorithms. The goal of this software is to offer a flexible system able to speed-up the implementation of research ideas. Complex behaviors like variable size populations or self-adaptive genetic operators can be implemented easily and quickly.
- NachoCalendar is intended to provide a fully customizable calendar component for Java
- Nux is a Java toolkit that makes efficient and powerful XML processing easy. It is geared towards embedded use in high-throughput XML messaging middleware such as large-scale peer-to-peer infrastructures, message queues, publish-subscribe, and matchmaking systems. It provides a robust commodity Java tool set for XML, XQuery, XPath, schema validation, binary XML, fuzzy fulltext similarity search, and related technologies. Nux allows you to mix and match powerful main-memory XML tools that fit your needs.
- Openchart2 is a simple charting and plotting library designed for incorporation with a variety of Java applications. The library can generate two dimensional bar, pie, radar, and scatter charts with customized titles, axis labels, legends, and colors. The simplicity of the library is its strongest feature. Openchart2 is a branch of the original JOpenChart library.
- OpenSign is a collection of Java applets providing client-side digital signing functionality using x.509 certificates. It currently consists of two applets, one for signing plain ASCII text and another providing login functionality.
- OpenXava is an XML/Java Framework to develop J2EE business applications rapidly and easily. It is based on business components defined with XML. It is feature rich and flexible, since it has been used for years to create real business applications.
- Paranamer is a mechamism that allows Java programmers to access the parameter names of methods of Java classes. It works with JDK 1.4 and later.
- Piccolo is a truly revolutionary way to create robust, full-featured graphical applications in Java, with striking features such as zooming and multiple representation. Piccolo is a well-tested and extensive toolkit based on the Java2D API.
- PMD is a Java source code analyzer. It finds unused variables, empty catch blocks, unnecessary object creation, and more. It includes CPD, a tool to detect chunks of identical code.
- Polyglot is a highly extensible compiler front end for the Java programming language. Using Polyglot, language extensions can be implemented without duplicating code from the framework itself. Polyglot has been used to implement domain-specific languages, to explore language design ideas, to simplify Java for pedagogical purposes, and for various code transformations such as optimization and fault injection. Polyglot has been used for both major and minor language extensions.
- prbeditor is an editor for Java property resource bundle files. The application's intent is to help in the localization (l10n) of those programs that have been internationalized with Java's standard i18n mechanism. In contrast to other similar tools, it shows the keys and values of several languages at the same time in a spreadsheet, giving a global view of the resource files. The tool relies on the application of regular expresions
- ProGuard is a free Java class file shrinker, optimizer, and obfuscator. It can detect and remove unused classes, fields, methods, and attributes. It can then optimize bytecode and remove unused instructions. Finally, it can rename the remaining classes, fields, and methods using short meaningless names. The resulting jars are more compact and more difficult to reverse-engineer. Advantages of ProGuard compared to other Java shrinkers and obfuscators are compact template-based configuration, memory efficiency, and speed.
- Pulse is a Web application framework and portal solution that provides easy-to-use, extendable patterns for creating browser based applications, Web sites, and portals. It delivers a set of out-of-the-box components, such as CMS, shopping, and user management.
- Qt Jambi is a cross-platform rich client application development framework for Java. It includes a comprehensive class library and integrated development tools for high-end rich client application development
- RapidMiner (formerly YALE) is a flexible Java environment for knowledge discovery in databases, machine learning, and data mining. Many nestable learning and preprocessing operators (including Weka) are provided. It features an XML-based graphical user interface, a plugin mechanism, and high-dimensional plotting, and provides an easy-to-use extension mechanism that makes it possible to integrate new operators and adapt the system to your personal requirements. A command line version is also included.
- Ravenous is full-featured Web server written in Java. It allows you to write dynamic pages in Java without the need to read stacks of books before you get started, while still providing the features needed to create complex, high performance sites once you get more development experience.
- Restlet is a framework that brings the simplicity and efficiency of the REST architectural style to Java developers. It is composed of two parts, the Restlet API (alternative to Servlet API) and a reference implementation (Noelios Restlet Engine). It supports all REST concepts (resource, representation, data, connector, components, etc.) and is suitable for both client and server REST applications. The server connectors provided are HTTP(S), AJP (via Mortbay's Jetty or an adapter Servlet) and the client connectors are HTTP(S), JDBC, and SMTP (via JavaMail).
- SDE for NetBeans is a UML modeling environment tightly integrated with NetBeans. It lets you draw all types of UML diagrams (use case diagram, class diagram, sequence diagram, activity diagram, etc.) in NetBeans, reverse source code (Java, C++, XML, XML Schema, CORBA IDL, etc.) to UML models, and generate Java source from UML diagrams. It features a Rational Rose importer, an XMI importer, HTML/PDF documentation generators, and plug-in and template support.
- Sequoia (formerly known as the Clustered JDBC project) provides high availability and performance scalability for databases. It provides transparent database clustering (partitioning, replication, etc.) to any Java application through JDBC. It works with any Java application without code modification and with any database engine. It has been successfully tested with Tomcat, JBoss, JOnAS, WebSphere, MySQL, PostgreSQL, Apache Derby, HSQLDB, SAP DB, Oracle, DB2, Sybase, MS SQL Server, Firebird, and more.
- Simple is an XML serialization framework for Java. Its goal is to provide an XML framework that enables rapid development of XML configuration and communication systems. This framework aids the development of XML systems with minimal effort and reduced errors. The framework borrows ideas and concepts from existing XML tools such as C# XML serialization and other proprietary frameworks, and combines those ideas resulting in a simple yet extremely powerful tool for using and manipulating XML.
- Sleep Scripting is an embeddable scripting solution for Java applications. It is heavily inspired by Perl with bits of Objective-C thrown in. Features include function closures as first-class types, a unified I/O interface for sockets/processes/files, and the ability to instantiate/query Java objects. The Sleep Java API allows the language to be extended with new constructs, operators, functions, and variable containers.
- SOJO is a Java framework that converts JavaBeans (complex Java-Object graphs) to a simplified representation, so that handling and controlling access to JavaBeans properties is easy and uniform. The framework is meant to compliment POJOs in cases where object orientation is not supported or is not the best decision. This is a powerful way to transform an Object to a data interchange format such as JSON or XML.
- Spring IDE for Eclipse provides plugins for the Eclipse platform to ease working with Bean Factory configuration files for the Spring Framework. It contains a Spring project nature (with an incremental builder for validating Spring bean config files), an image decorator (which decorates Spring projects and all Spring bean config files), a Spring view (which allows one to browse Spring projects and their Spring bean config files, including bean properties), and an editor showing a graph from the beans of a single config file or a set of config files.
- StrBio is a set of Java classes useful for development of software for computational structural biology research.
- SuperWaba is a VM for PDAs. Because of the way it was written, you can use Java to develop programs for it. It supports exceptions, threads, many user interface controls, double and long 64-bit types, grayscale, color, 3D controls, and JNI and Java libraries, among other features.
- SVNKit is a pure Java Subversion (SVN) client library. This means that users of the library (i.e. Java applications) do not have to include svn native binaries or javahl bindings to work with subversion repositories. It is not only a 100% Java replacement for javahl bindings, but also a library that provides a high level of control over subversion repository operations.
- SwingSet is an Java toolkit that contains data-aware replacements for many of the standard Java Swing components. It currently includes replacements for JTextField, JTextArea, JComboBox, JCheckBox, JSlider, and JLabel. There is also an image component, a graphical record navigator, and a data grid component. All of the primary components are available as JavaBeans.
- SwingWT is an implementation of the Java Swing and AWT APIs which instead drives SWT applications. This allows existing Java/Swing/AWT applications to be compiled natively under Linux with gcj (or simply to allow native widgets for existing Swing apps without recoding)
- SwiXAT is a Swing-based authoring tool for the quick and easy development of GUI Java applications. It implements a true MVC framework and uses XML to define the view (SwiXML is used as the XUL engine), BeanShell as a scripting language for the controller, and JXPath as the binding mechanism between the view and model. It provides a complete environment in which it is possible to almost write an entire Java Swing application without writing Java compiled code. The use of XPath makes it very simple to traverse the object tree of the application's business model.
- SWTLoader is an elegant hack to ease Java SWT program deployment. You can produce self-contained, double-clickable jar files with the needed native files inside them. Users will just have to double click your file; no more scripts or installers.
- Tom is a software environment for defining transformations in Java. It is an extension of Java designed to manipulate tree structures and XML documents. It is compatible with Java: a Java program is a correct Tom program. Data are represented using an efficient tree based data-structure. Java built-ins (int, char, String, etc) can be used. Tom provides pattern matching facilities to inspect objects and retrieve values. A powerful strategy language can be used to control transformations.
- Transmorph is a Java library used to convert a Java object of one type into an object of another type (with another signature, possibly parameterized). It supports conversion for primitives and objects, conversion to multidimensional arrays, conversion to parameterized collections and types, and jars for JDK 1.4 and JDK 1.5. It has no dependencies. It is easy to add more converters. It can convert to a type given either its Java type (class) or signature
- UnifiedIO allows a Java programmer to access files, URLs, primitive arrays, and streams through the same interface. It features high performance, transparent buffering, a memory manager, implementations of ImageInputStream and ImageOutputStream, a bridge between the RandomAccessFile world and the InputStream/OutputStream world, directly reading from and writing to primitive arrays, optimized reading over HTTP (using byteserving), an easily extensible design, and many codec utilities.
- Useful Java Application Components (UJAC) is a collection of components that may be useful for your project. It provides a powerful expression interpreter, an iText-based document processing engine that generates PDF documents based on XML templates, a charting library supporting JSP custom tags, and much more.
- VuzitJava is a library that allows developers to directly access the Vuzit Web Service API through the Java platform. It allows developers to automate the upload, download, and removal of electronic (PDF, doc, PPT, XLS, etc.) documents through the Vuzit Web Services API. You can use this library through any Java-enabled language such as Scala, Jython, or Groovy.
- Watchmaker is an extensible, high-performance, multi-threaded, object-oriented framework for implementing platform-independent evolutionary computation (genetic algorithms, etc.) in Java.
- WaveMaker is a WYSIWYG builder for Java Web applications. It creates standard Java applications based on Dojo AJAX widgets, Spring, and Hibernate. WaveMaker apps deploy as standard Java WAR files and can be opened and extended in Eclipse or Netbeans.
- WildCAT is a Java toolkit and framework which can be used to build context-aware applications. From the client application's point of view, it provides a simple and dynamic data-model to represent the execution context of the application (for example, software and hardware resources), and offers a simple API for the programmers to access this information both synchronously and asynchronously (pull and push). Internally, it is a framework to integrate multiple sources of structured or unstructured monitoring data in a common data model.
- xmlenc is a light-weight XML encoding library for Java. It fills the gap between a light-weight parser like SAX, and a heavy-weight XML output library, like JDOM.
- The XNap Commons project provides a set of utility Java classes for easy handling of common tasks like sortable tables, auto completion, and internationalization, a settings framwork, and Swing components like common dialogs, a wizard, a closeable tabbed pane, a directory chooser, and what's-this-style context help.
- YaHP is a java library that allows you to convert an HTML document into a PDF document.
- Yet Another Java Profiler is a profiler tool that uses the JVMTI interface. It can be used to selectively trace a Java program and store this information in a compressed logfile. This logfile can then later be analyzed using the same tool. It's also possible to monitor heap/stack usage and the threads at runtime.
- YourKit Java Profiler is a CPU and memory profiler that makes it easy to solve wide range of CPU- and memory-related performance problems. It features automatic leak detection, powerful tools for the analysis of memory distribution, an object heap browser, comprehensive memory tests as part of your JUnit testing process, extremely low profiling overhead, transparent deobfuscation support, and integration with Eclipse, JBuilder, IntelliJ IDEA, NetBeans, and JDeveloper IDEs.
- The Zeus Java Swing Components Library provides useful Swing components for easier GUI development. It uses only standard components to create widgets and standard patterns wherever possible. It includes a console replacement, a splash screen implementation, a table sorter, a window manager class to manage JInternalFrames within a JDesktop, a simple solution to the multiple application instances problem, a data validator, and much more.
- ZK is Ajax Java framework without JavaScript. With direct RIA, 200+ Ajax components and markup languages, developing Ajax/RIA as simple as desktop apps and HTML/XUL pages. Support JSF/JSP/JavaEE/Hibernate/.., and Ajax script in Java/Ruby/Groovy/Python/..
Zie ook: Java freeware (hlr)