xajax is an open source PHP class library for easily creating powerful PHP-driven, web-based AJAX Applications. Using xajax, you can asynchronously call PHP functions and update the content of your webpage without reloading the page.

xajax is designed to be easy to implement. To keep the presentation markup relatively clean and avoid having to create a lot of JavaScript functions to update your web content, xajax allows you to control a great deal of your content through XML responses from your PHP functions.

The xajax class creates javascript wrappers for specified PHP functions and generates the necessary javascript support functions to permit you to call them asynchronously through XMLHttpRequest from any HTML event, such as onclick.

xajax's real power lies in the way it allows you to communicate with and manipulate your application through commands sent back from the server. There is no need to create a multitude of javascript handlers or callback functions to handle the data returned from asynchronous requests. The javascript generated by xajax includes a message-pump, of sorts, that parses XML responses returned from your PHP functions and executes the commands contained therein. A single XML response can contain any number of commands.

Open source SIP and media stack libraries, with good performance and small footprint. The libraries are written in portable C, but other languange bindings (such as Python and ActiveX) for the high layer API are planned. Actively maintained ports include Windows and Windows Mobile family, Linux, Unix, and MacOS X.

Current features include SIMPLE, IM, call features, conferencing, speex and iLBC codecs, AEC, PLC, portable sound device, etc. Please visit the http://www.pjsip.org website for more details.

edtFTPj is the first choice of Java developers worldwide for incorporating FTP functionality into their applications.

edtFTPj is an FTP client library that allows any Java application to have full embedded FTP functionality. It includes a straightforward but comprehensive API with functions such as put (), get(), chdir(), dir() and pwd(). Active and passive modes are supported.

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.

JCS is a distributed caching system written in java for server-side java applications. It is intended to speed up dynamic web applications by providing a means to manage cached data of various dynamic natures. Like any caching system, the JCS is most useful for high read, low put applications. Dynamic content and reporting systems can benefit most. However, any site that repeatedly constructs pages, dropdowns, or common search results from a database that is updated at intervals (rather than across categories continuously) can improve performance and scalability by implementing caching. Latency times drop sharply and bottlenecks move away from the database in an effectively cached system.

The JCS goes beyond simply caching objects in memory. It provides several important features, necessary for any Enterprise level caching system:

• Memory management
• Disk overflow (and defragmentation)
• Element grouping
• Quick nested categorical removal
• Data expiration
• Extensible framework
• Fully configurable runtime parameters
• Remote synchronization
• Remote store recovery
• Non-blocking "zombie" (balking facade) pattern
• Optional lateral distribution of elements via HTTP, TCP, or UDP
• Remote server chaining (or clustering) and failover

These features provide a framework with no point of failure, allowing for full session failover including session data across multiple servers.

FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, SVG, XML (area tree representation), Print, AWT, MIF and TXT. The primary output target is PDF.

Jakarta Lucene is a high-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.

JGraph is the leading open source Java Graph Visualization library available. It can be used to draw diagrams where the nodes and edges of the diagram have a context. Good examples are workflows editors, business process modelling, database visualization, UML editors, CAD tools, computer networks, bioinformatics and more. JGraph comes with complete documentation and commercial support available.

Ptplot is a 2D data plotter and histogram tool implemented in Java. Ptplot can be used as a standalone applet or application, or it can be embedded in your own applet or application.

JSON-RPC-Java is a key piece of Java web application middleware that allows JavaScript DHTML web applications to call remote methods in a Java Application Server (remote scripting) without the need for page reloading (as is the case with the vast majority of current web applications). It enables a new breed of fast and highly dynamic enterprise Java web applications (using similar techniques to Gmail and Google Suggests).

JSON-RPC-Java 1.0 and future versions are licensed under the Apache License, Version 2.0.

Versions of JSON-RPC-Java up to and including 1.0rc2 are licensed under the LGPL.