Free java desktop software for linux

The Sun Java Desktop System is a secure, comprehensive, and affordable enterprise desktop software solution that combines the best of open source innovation with significant contributions from Sun.
Initially provided with a Linux OS, Java Desktop System is now also integrated with the Solaris 10 Operating System. As a result, Sun customers have the option of deploying the same desktop environment on Sun workstations, Sun Ray thin clients, as well as a broad range of non-Sun notebook and desktop systems with standard x86-based architectures.
Main features:
End user features:
- Automated software updates and patching, including dependency checking/analysis to ensure systems are secure and up-to-date.
- Local and remote management capabilities provide update scheduling and activity log access.
- Interoperability with centralized software management tools.
- Desktop applications are tightly integrated allowing for drag and drop and copy/paste of text, graphics and other elements between applications.
- Universal printer selection of available printers on network, including printers available on Windows networks.
- Single point of entry for directory and file management and networked computers.
- Direct access to content in data and files by single-click application launch for files contained in email, web pages and file manager.
- Intuitive, easy to use, single install mechanism which ensures users can quickly get productive.
- Easy to learn and use, especially for traditional MS Windows users. Featuring:
- Familiar desktop themes for file management and desktop configuration
- Standard keyboard short cut conventions
- Direct access to files and servers using the "Documents" and "Network Places" directories
- Familiar access to networked computers from single "Network Places" directory
- Full product documentation including Quick Start User Guide and other reference documentation.
- Includes selection of great productivity tools including office suite, browser, email/calendar, instant messaging, project management, drawing and video conferencing applications.
- Multimedia-ready with essential video and audio players plus a sound recorder. Featuring Java Media Player with support for MP3 playback and a CD Player.
- Users can access data stored in office productivity files of Microsoft users and printers connected to existing Windows networks.
- Full interoperability with Microsoft Office files.
- Interoperability with POP3, LDAP, SMTP mail servers.
Administrator features:
- Java Desktop System Configuration Manager allows system administrators to define groups of users and the policies for access rights and settings.
- Fine grained control of employee access rights and privileges.
- Remote image deployment to manage a defined set of packages or system images for rapid setup and provisioning of desktops and deploy on multiple systems simultaneously.
- Centralized package management enabling volume software push, patching, updating multiple desktops.
- Software dependency checking and analysis to identify patch and package dependencies and deploy correct set of software.
- Inventory collection of desktop details, OS, hardware profiles and more.
- Performance Monitoring of deployed desktop environments.
- Use a collection of interconnected computers as a unified computing resource.
- Ability for administrator to view and interact with users desktop display to help, guide and troubleshoot.
Developer features:
- Java Studio Standard is a powerful yet intuitive Integrated Development Environment (IDE) for Java, providing a comprehensive set of features and functionality.
- NetBeans IDE 3.6 delivers tightly integrated deployment and debugging of web applications on Apache Tomcat 5 and the Sun Java System Application Server, Platform Edition 8.
- J2SE hosts the Linux GTK+ look and feel support in JFC/Swing enables Java applets and applications to be written so they look just like native Linux apps on JDS.

JavaDesktopEngines aim is to produce a piece of software that is at the same time:
Shared virtual machine
It allows to launch different java programs inside the same VM. The VM will always be alive, so no more startup overhead and less memory used.
It uses our JDSVM(Java Desktop Shared Virtual Machine), which in turn is based on Javagroups great Echidna Project
Xml Rpc local server
This way it is possible for programs, even written in languages different from java, to access "services" exposed by the engine.
Plugin host
It has been built with a pluggable architecture in mind, so that it is possible to develop new "services" for the engine.
Linux/Windows service (next release)
It is run as a service, so that its "services" will always be available for other programs.
For those of us who make heavy use of java tools its always been quite frustrating to have to open lots of resource eager VMs just to launch very useful but simple programs. Moreover, VM starting for simple utilities is a real waste of time.
Weve all appreciated the difference when launching a compilation from inside an IDE. In this case javac is launched as a process inside an already active VM, and the difference is evident.
JDE in the beginning was born to try to address these problems. Having an always active VM where it is possible to launch processes in, means faster process start and less resources used. A lot of time is saved by from not loading again and again the VM.
Theres nothing new in this. Some very good related projects are alive and kicking on the net, some of them focusing on a complete Java desktop enviroment, some on just a shared VM. JDE positions itself a bit differently, as it can be seen as a java engine exposing pluggable services (shared VM being just one of these).
There are several approaches to implementing a shared VM, all of them with pros and cons. Weve chosen to use the great code from the Echidna Project for now.
The entrypoint of JDE is an XML-RPC server accepting calls for services. Everything needed from JDE can be obtained by making a call to it.
The main service exposed by JDE is obviously the java process launching one. By making a call, it is possible to launch a java process insisde the VM. Having an XML-RPC server allows us to use any language with xmlrpc capabilities to launch java programs. The package includes a simple python script, that can be easily used as launcher (see our simple tutorial for details).
Included is also a "Manager", a simple swing application with active process listing and process launching capabilities.
Hopefully, this one will evolve as far as there will be more services in JDE to be the reference manager for the engine.
Included plugins:
1) Java process Launcher. The one this project was started for. You can launch java processes inside the living VM.
2) Scripting engine. Via a simple xmlrpc call you can launch a script on the engine and get back results. The nice thing, as usual, is that being xmlrpc based, you can use it as a service called by anything written in any language. Currently supported scripting language is BeanShell. More will be available soon via BSF.
3) Fast editor Based on jEdit Syntax Package 2.2.1, a simple, fast and useful editor with only some of the nice features jEdit has got us used to.
Enhancements:
- This release should be a bit more robust when killing processes that make use of System.exit(0) without "dispose()".
- An icon for the GUI manager has been added, as well as a bat file for Windows systems.

Java Games project is a collection of simple games that are compiled into Java applets and meant to be played online in a Web browser.

Currently the collection contains four games: XO World (similar to tic-tac-toe, but with lines of 5 on a 10x10 board); 100 Mack (guess the random combination of 4 images out of a set of six); Memory (flip 2 plates at a time to find matching pairs); and Tetris.

Java Network Stack provides a Java library for research oriented network programming.

Java Network Stack is a library used by the DIMES project to create new internet measurements. It provides a clean API for packet manipulation, send, receive, filter, and analysis. It is a unification of raw socket capabilities, MAC level networkingm, and IPv6 capabilities.

Java::JCR::Nodetype is a Perl module that can load the JCR node type class wrappers.

SYNOPSIS

use Java::JCR::Nodetype;

This loads the Perl classes mapped to the javax.jcr.nodetype package.
You might notice the odd letter case of this package differs from that of the node type class (Java::JCR::Nodetype::NodeType). This has to do with the way the package was imported. This may be corrected in the future.

Java Web Shell is a web based interactive shell-type environment written in Java.

Obviously, to use the shell, youll need to be using a browser that supports Java Applets, and this has been compiled using the Sun 1.4.1 JDK.

Head over to Sun and pick up the latest runtime enviroment if you dont already have it.

Java.Inquisition project create and takes computer-based tests and quizzes. Cheating is fully supported, so its only going to be useful for things like mock exams and self-assessment rather than administering formal exams.

Java.Inquisition is free, open-source software (see License). It is written in (you guessed it) Java, and should therefore work on any platform where Java is supported (including Linux, Mac OS X and Windows).

Why did you write this?

Java.Inquisition was written while I was meant to be studying for the "Sun Certified Java Programmer" (SCJP) exam. Like many programmers, Im prone to the delusion that the best way to do any work is to write a tool to do it for you. So, rather than studying, I wrote this little application to "help" me study (even though I havent done a great deal of studying as a result). Anyway, the upshot is that Java.Inquisition has been designed with enough features to functionally simulate the SCJP 5.0 exam, and would probably work fine as a simulator engine for a number of other certifications.

Why does the world need Yet Another Exam Simulator Engine?

Good question. The quick answer is that I couldnt find a free software exam simulator that supported the features I wanted — in particular, drag-and-drop questions — so I thought Id write my own. Other exam simulators in this sort of area include JPilotExam (GNU GPL), Magnet Mocker and Ultramock. Commercial simulators include Whizlabs, JQPlus and EPractize Labs).

As Ive demonstrated by writing Java.Inquisition, any old idiot can put together a workable exam engine. The difficult bit is writing a decent, bug-free question set which includes helpful explanations for the answers. I was hoping people would be interested in helping out (see "How can I get involved?" below). To make the most of what other people have worked on, Java.Inquisition can import questions from JPilotExam, Magnet Mocker and Ultramock.

k5n Desktop Calendar (k5nCal, for short) application is a calendar application for your desktop. It shares features with applications like Apple iCal and Microsoft Outlook, but it is open source.
This project is built upon Java Calendar Tools, and all data is stored in RFC 2445 iCalendar format.
Main features:
- Supports Mac OS X, Linux or Windows (requires Java 1.5)
- Saves all entries in iCalendar RFC 2445 format
- Simple and intuitive user interface similar
- Open source license so you can download and modify the source and use it free of charge.