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Welcome to the JavaServer (TM) Faces Implementation Project!

Posted by edburns on June 28, 2004 at 9:56 AM PDT

Hello, and welcome to my first blog on In spite of all the
hype about blogging lately, I was still hesitant to jump into the
blogging universe until I had something to say, and today I do:

People have been requesting that Sun release the source code of its
implementation of JavaServer(TM) Faces Technology for several years,
and Sun's answer has been that doing so is under review. I won't go
into the reasons for the length of the review process, but I'm happy
to announce that it's finally complete. We have created an href="">open development project
on to host the continuing development of Sun's JavaServer
Faces implementation. All previously internal development will be
done in this project; there is no private source tree that we
really use. In other words, this project is not just for show.
Please read the href="">FAQ for
answers to such pressing questions as "how do I get and build the

You'll note that I didn't use the term "open source", but rather,
"open development". We're doing so out of respect for the rigorous
definition of the term supplied by the href="">Open Source
Definition (OSD). I'm not a lawyer, and I can't tell you where
the Java Research License,
which we're using for our project, stands with respect to the OSD.
I'll leave that to someone who doesn't write code!

In any case, as with any open development project, there are many
levels of participation. You can href="">file
bugs so we know about them and can get the fixes to you as quickly
as possible. You could simply grab our href="">regular
builds to check if your pet bug has been fixed. You can browse
the source code to get an explanation of the behavior you're wondering
about. You can, also (my favorite) href="">build
the code yourself and href="">run
it in a debugger for the ultimate in development transparency.

Presently we are only accepting Observer role members
into the project, but we plan to open the project up to committers on
a case by case basis once trust is established that our development
processes will be followed.

So what are these processes? We'll have more detail in the FAQ but
here's the idea. All the code in the javaserverfaces was developed
using href="">Test
Driven Development. Each checkin must include either a new test,
or a modification to an existing test to prove that the new code works
as expected. Before checkin, each developer's workspace must
successfully execute all automated tests, as well as have code review
and approval from another developer. We employ the usual suspects to
make this happen: ant, href="">junit, href="">cactus, and href="">htmlunit. Heavyweight?
Perhaps, but when you're testing resources are so taxed that they
can't spend as much time as you'd like with your project, these
measures are well warranted. I feel that our commitment to code
review and test driven development has contributed significantly to
the quality of the project, and helped to reduce the bug introduction

To wrap it up, I'd like to share what we hope to gain from doing
open development on javaserverfaces. This project aims to:

  • be the most complete implementation of the

  • have a fast turn-around time for getting bug fixes into
    the hands of users.

  • build a community of developers who are committed to
    increasing the quality of Sun's JavaServer Faces

  • demonstrate uncompromising commitment to test-first
    development and code review for all code coming into the

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