java-gnome 4.1.3, released 4 May 2013
Overview, News
Tutorials, API, and Hacking
Binaries and Source
Mailing Lists, IRC, and Reporting Bugs


We’d love to have you contribute by hacking on the bindings themselves!


1. Checkout the source code

If you’re going to hack seriously with, or on, java-gnome, we recommend the following sequence to checkout the source code:

$ cd ~/src/
$ mkdir java-gnome/
$ git clone git:// working
$ cd working/
$ less README.markdown

If you are using Eclipse, you may instead want to do this such that the checkout is under ~/workspace.

$ cd ~/workspace/
$ git clone git:// java-gnome
$ cd ~/workspace/java-gnome/
$ less README.markdown

Doing it this way allows you to later do

$ git checkout some-other-branch

to change between branches you have created with different lines of development. This works well, but is an advanced layout, so do experiement with it a bit if you aren’t well versed in distributed version control practises.

And build!

If you haven’t already read them, see the instructions in the top level README for how to install from a source tarball and what options you can supply to the ./configure script.


The java-gnome bindings are pretty straight forward, so in terms of adding new coverage you can probably pick things up by example fairly easily. But you really should take the time to understand why things work, or you won’t be able to understand the mechanisms involved behind the scene.

API design and overall system architecture

In the doc/design/ subdirectory you will find extensive documentation of the current re-engineering process that lead to the design and architecture of the java-gnome bindings. Try starting with doc/design/START.

You really are encouraged to peruse these files; the one on Architecture in particular is pretty much required reading if you want to understand what’s going on.


Things like how you format your code, what editor you use, etc are all very personal issues, but for a project to function with anything even remotely resembling sanity, there need to be some standards and conventions. Thus we have several documents outlining the style guidelines you’ll need to know if hacking on the java-gnome 4.x bindings. They’re in the doc/style/ directory.

Code formatting

I’ve carefully documented the 4 divergences from the otherwise default “Java conventions” for Java source code formatting. Please take a moment to read doc/style/CodeFormat; your patches have a much better chance of being accepted if they produce clean diffs, and that’s more likely to happen if you stick to these rules.

Commit Messages

There are just a few minor conventions you should be aware of when committing patches. See doc/style/CommitMessages.


JavaDoc is the heart and soul of our API documentation and good JavaDoc is going to be the key defining criteria for our bindings being approachable to new developers. As such we’ve written out considerable guidance about how to best go about documenting our public APIs.

Of course, JavaDoc alone isn’t sufficient, and we have a number of supporting documents describing the design and architecture of java-gnome. See doc/style/Documentation for discussion of appropriate style for both in-code JavaDoc and supporting textual Design documentation.


We have gone to considerable trouble to ensure our text documentation files are readable from a terminal window, but by using a simple yet powerful markup syntax called Markdown we can also easily render these files to useful web pages. See doc/style/MARKUP.


The opportunity to work on something you love is the greatest experience you can have. If you or your company chooses to offer code you write, be it towards helping us on this project or on any other endeavour whatsoever, I encourage you to choose to let others use your work as Software Libre and in your own turn help people find their own passion and excitement. By your actions you lift us all up. I hope you’ll join us!

Apotheosis Rising.


Andrew Frederick Cowie
Managing Director,
Operational Dynamics,
a Change Management consultancy…

opening GTK and GNOME to Java programmers!

Last modified 22 Feb 13

Contents copyright © 2006-2011 Operational Dynamics Consulting Pty Ltd, and Others. See AUTHORS file and source code history for the various files comprising this site for full details. This page was generated from a text document! We use John Gruber's Markdown syntax as ported to PHP by Michel Fortin. See MARKUP for details