This BlueJ extension allows you to easily manage (i.e. create, import/export and switch between) multiple BlueJ projects. Some neat features help you to auto-position package windows or to handle bunches of jar files (e.g. when correcting exercises).
CRH - Components are kind of an extension of the components of Java. They support own content types and mechanisms for defining behaviour in case of errors.
Swing Simple is a set of Java Swing libraries meant to simplify the development of Swing and AWT components. These include a process viewer, a CSS-like Layout Manager and others.
MSBLayout is a LayoutManager for Java AWT and Swing that combines the nested-boxes approach of BoxLayout with flexible constraints as used by GridBagLayout. A concise API minimizes the code required to get good layouts with optimal resizing behaviour
LIEL (Language Independent Extension Library) is a language-agnostic library containing solutions to various programming problems and extending the capabilities of existing frameworks and code libraries.
Snow is a Lisp-based GUI description DSL for Swing. It supports declarative layout, data binding, event listeners implemented in Java or Lisp. NOTE: the project is now hosted on common-lisp.net.
Spring3D enables the object-oriented creation and manipulation of 3D geometry running on top of most 3D API (i.e. JOGL or Android's OpenGL). The reference engine is based on Java3D and is in the application process for being made a Spring Extension.
A simple layout manager for java applications. The ActiveLayout arranges components in a directional flow by lines with proportional filling free spaces between components and container's bounds.
A simple visual editor for drawing OPJ models; these models represents an extension to the classic Petri-net diagram; they were developed before the unification of OO methodologies and the relative release of the first UML specification.
This project has move to https://github.com/mikis/jaccept
Extension to JUnit to enabled automatic acceptance testing. The TestSuite & TestCase are extended with operations providing added documentation and workflow control.
AtomicDate is a Simple Network Time Protocol (SNTP) implementation in Java, as described by RFC 2030. It's composed by a client/server framework and works as an extension to java.util.Date class.
Lobo is an extensible all-Java web browser and RIA platform. It supports HTML 4, Javascript (AJAX) and CSS 2 plus direct JavaFX and Java (Swing/AWT) rendering. Cobra is the web browser's renderer API; also a Javascript-aware HTML parser.
A Java framework for writing sprite based games (turn-based, card, and arcade games.) Provides: Sprite management, rendering (Java2d or OpenGL), Collision Detection, Sprite widgets (buttons etc...), visual editor for layout of game widgets.
Java Runtime Designer is a visual designer component that can be easily embedded in your application and used to change the layout of the dialog at runtime. The runtime designer allows you to switch at any time between the live and design mode.
Pagelayout is a simple yet versatile layout manager for developing Java Swing and AWT GUIs. It allows the components to be laid out in nested rows, columns, and rectangular grids with an API that is very easy to use.
A real-time graph plotter. While your application is computing and logging results to a CSV file using the LiveGraph Writer API, the plotter lets you visualise and monitor the results live - by instantly plotting charts and graphs of the data.
Blocks is a block-oriented graphical programming language. Programming is simply a matter of dragging and dropping blocks. Blocks can be used as an education language, as an extension language for Java applications or as an autonomous script language.
AbuGraph is a freely available Java application for the layout and visualization of directed graphs. Bound to a TCP port, it supports dynamic graph creation receiving commands from a telnet console or another third party application.
Syncopate is an extension module to the Apache JMeter testing tool. It enhances JMeter's HTTP proxy server by adding functionality to extract variables and create assertions during HTTP request recording.