Found this thread by an unrelated search. I am aware I am a bit late but for reference I give my €0.02 (or, in French, my 0,02 €...).
I am French, and I code for quite some time in various companies.
I must say the "technical French" is almost inexistent, and often derived from English. Actually, when I read a French technical article where they carefully translated each word to French, I feel slightly disoriented...
We casually speak (in French!) of combo boxes and hash maps instead of listes déroulantes and ... I just forgot the official translation of the latter! (table de hachage, thanks to Laurent K.)
It makes a slightly bastardized casual language, but we understand each other. You just have to get used to some French mispronouncing (me being first, I am better at writing than speaking!), not to mention spelling mistakes in code or just replacing an unknown English word by a French one!
Like VonC, on my current company, we write code (identifiers, comments) and technical docs in English.
Unlike him, we also do user documents in English, because we have international customers (the application is even hard-coded in English, literal strings everywhere!). Even with French customers (they are technical people too), we ship English docs and they write bug reports in English...
Internal meetings are in French...
The general tendency in France is to write code in English. Some beginners (I was one of them...) still write comments in French. Hey, I am even guilty of having written a rather large VBA application (for Excel) with identifiers and comments in French (with accents!)... to be in synch with the localized version of VBA (Microsoft made French, German and perhaps Spanish versions... Which led to lot of problem of portability).
French technical sites: set Google to bring results in French as well in English. For me (it might look at other parameters like preferred languages in browser), it brings lot of French pages in my searches (sometime as top links). Somehow, I often prefer to find English articles... :-)
A starting point: Java - Club des décideurs et professionnels en Informatique, eg. their FAQ Java. Also Le développement avec Java, JavaFR.com, Programmation en Java, among others.