Le dimanche 01 janvier 2012 19:03:33, Andrea Aime a écrit : > On Sun, Jan 1, 2012 at 6:55 PM, Andrea Aime <andrea.aime@geo- solutions.it>wrote: > > The brief facts: > >> * Sun Java is not allowed to be packaged into future distributions (like > >> ubuntu, debian, or OSGeo-Live). Instead, users are expected to download > >> SunJava from Sun. > >> * SunJava 7 will be based upon OpenJDK. > >> * OpenJDK is reportedly much better than previous OpenJDK versions. > > Hmmm.... I wanted to run a benchmark to substantiate this claim but there > are no OpenJDK 7 binaries available > for my aging Ubuntu 10.04 (which I'll upgrade only when the new LTS shows > up). > > Also, on Windows there are no OpenJDK builds so in the end we need to > target Oracle JDK anyways (besides > the obvious business reasons), this means a OpenJDK support will have to > come in parallel (aka "more work")
Not sure how/if it can help for geoserver/geotools, but I can give you some of my experience with OpenJDK6 and Windows. I have ported a quite big Java app from Sun Java 1.4.2 -> Sun Java 1.6.0 -> OpenJDK 1.6.0 and it is now in production in our client. It is true that there are no Windows OpenJDK builds easily found. I finally build mine. The hardest part was to gather all the requirements (cygwin, directx headers, freetype, GNU make, etc...), plus some undocumented issues that I finally identified as being due to my use of a non-English version of MSVC. But overall I found that the build instructions worked well if you follow them closely. Lately, I've updated to the build b23 and found that the building process was a bit easier than during my first experience that dated back to more than 1 year 1/2. As far as the port of the app is concerned, most problems found were due to an inadequate use of some bits of the Java API where the Sun Java 1.4.2/1.6 implementation were permissive, but the OpenJDK one not. When looking at the docs, we realized that we were relying on unspecified behaviour. The most problematic was due to an inadequate use of threading with AWT (use of AWT from another thread than the AWT event dispatch thread). The other most problematic part I can recall was related to font rendering. The font engine of the windows openjdk build uses freetype whereas the commercial version uses a closed-source engine. This required adjusting font sizes in GUIs and setting some anti-aliasing hints. I'm not sure if the changes we did would have been necessary if we had targetted JDK7/OpenJDK7 directly instead of OpenJDK6, but at the time they were done it wasn't yet released. Best regards, Even ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
