This page provides descriptions and links on projects
that are using the GCJ runtime and compiler. If you would like
your project to be listed here or know about a particular
project, please write to the java@gcc.gnu.org list.
Entries are listed in chronological order.
| Project | Description | Contact |
| iRATE radio |
iRATE radio is a popular
client/server mp3 player/downloader featuring collaborative filtering:
you rate the tracks and it uses your ratings and other people's to guess
what you'll like. iRATE uses GCJ together with the SWT toolkit to provide
native binaries on multiple platforms, including Windows and GNU/Linux.
iRATE has thousands of users, many of which use iRATE daily, making it
perhaps the most widely distributed GCJ-compiled program to date.
|
Taras
|
| XWT |
XWT is the XML Windowing Toolkit. It lets you write remote
applications -- applications that run on a server, yet can
"project" their user interface onto any computer, anywhere on
the Internet. When built with gcj, it calls directly into the
host's graphic routines and can be turned into, for example,
an ActiveX control.
|
Adam Megacz
|
| Autonomous Haulage |
Modular Mining System is using gcj on an embedded
StrongARM processor to control autonomous trucks in mining haulage
systems. Note that they're not using libgcj, but rather an
in-house runtime that they wrote.
|
| jUSB/jPhoto |
jUSB is an open source Java API for USB, with an
implementation that runs on recent GNU/Linux OS
distributions.
jPhoto provides basic command line and library support for
the digital camera protocol on top of jUSB. The protocol is the
new USB standard for talking to such devices called PTP.
|
David Brownell
|
| PAL |
PAL is a Java library for use in molecular evolution and
phylogenetics. Basically, PAL includes classes and
methods for computationally intensive statistics that are
useful for the analysis of DNA sequences.
PAL 1.0 consists of 111 classes in 12 packages with more than
20,000 lines of code, all of which compiles nicely into native
code using GCJ.
|
Korbinian Strimmer
|
| Swarm |
Swarm is a fine-grained distributed discrete event
simulator. Swarm is mainly used for agent-based
(bottom-up) modeling. Swarm is not written in Java, but
it has a JNI layer. It was done with JNI at first for
portability. And, since the simulator is not implemented
in C++, it wasn't expected to see major benefits from CNI...
The tested configuration relies on Kaffe as equipped
with gcj support. On Intel Debian 2.2, up to 30%
performance gains over Kaffe's jit3 were witnessed.
|
Marcus G. Daniel.
|
|
Tamanoir |
Tamanoir system is a complete framework that allows users
to easily deploy and maintain distributed active routers
on wide area networks. In the rapidly expanding field of
active and programmable networks, Tamanoir is designed
around a new kind of architecture dedicated to high
performance active networking. Its implementation features
a multi-threading approach to combine performance and
portability of services. It's written in Java and
standardly built using gcj.
|
Jean Patrick Gelas
|
| Fluid Dynamics |
Alejandro Rodríguez Gallego, at ICAI University (Spain)
has spent two years developing a Java program to solve
fluid dynamics. He says:
I have recently tested my program with GCJ and I have got
an incredible performance increase over HotSpot v2 (JDK 1.3 for
linux). -50% RAM were needed and execution time reduced in -15%.
GCJ will be the main compiler for my program.
|
| rhug |
Anthony Green and friends have set up rhug, a collection
of free software Java packages set up to build with gcj.
Both sources and RPMs are available.
|
Anthony Green
|
| WebMiel |
Christophe Roux has been working on software for
community communications over http. This program,
WebMiel, uses Tomcat and has been working with gcj since
mid-2002. The documentation is in French.
|
Christophe Roux
|
| Freestyler Toolkit |
The Freestyler Toolkit facilitates building with GCJ.
It focuses on simplifying the construction of
SWT Graphical User Interfaces and
XmlRpc servants that sit before MySQL database
backends.
|
Erik Poupaert
|
| Rimfaxe Web Server |
Rimfaxe is a web server featuring compilation of jsp pages
to .so libraries with gcj, SEDA-based architecture with
non-blocking I/O, servlet 2.3 / JSP 1.2 implementation
including filters and taglibs, and caching of static content.
|
Lars Andersen |
| JGachine |
JGachine is a networked game engine for 2D multi-player
(networked) games. JGachine is written in Java and C++. The
games themselves are written in pure Java and can be loaded
via network.
|
Jens Thiele |
| pdftk |
If PDF is electronic paper, then pdftk is an electronic
staple-remover, hole-punch, binder, secret-decoder-ring, and
X-Ray-glasses. Pdftk is a useful tool for handling PDF
documents. Every PDF user should have one in the top drawer
of his/her desktop.
Pdftk is also an example of how to use a library of Java
classes in a stand-alone C++ program. Specifically, it
demonstrates how GCJ and CNI allows C++ code to use
iText's (itext-paulo) Java classes.
|
Sid Steward |
| gcjwebplugin |
gcjwebplugin is a web browser plugin to execute Java (tm) applets.
It supports Firefox, Galeon, Mozilla, Opera and many more browsers.
|
Michael Koch |
| H2 Database Engine |
H2 is a Java database engine. Apart from the usual features such as
SQL, transactions, JDBC API, referential integrity, the database also
supports clustering, views, subqueries, encryption, trigger and stored
procedures. As HSQLDB, database can be operated in the embedded and
server mode, with data kept in-memory or on disk. It is available as a
native executable (using GCJ) and as a Java library.
|
H2 maintainers |
