Sun released Java 1.5.0_17 today. This release fixes (among other things) the regression bug of Java 1.5.0_16 which made it impossible to view and edit metadata in Conzilla. I wrote about this in a previous blog post.
Generally I recommend to use Java 1.6, but if you have to use 1.5 for some reason you can get the new version directly from Sun.
On Wednesday and Thursday I attended the Web of Data Practitioners Days (WOD-PD 2008) at “Altes AKH” in Vienna. AFAIK it was the first event of such a kind, it was something in between academic presentations and hands-on sessions, everything about Semantic Web and its related technologies.
I liked this format of a workshop very much, especially the “hacking session” in the evening of the first day with its “lightning talks”, and of course the socializing in between the talks. I finally had the chance to talk to some guys I already knew from various blogs and publications, but never have met in real life.
The Semantic Web Company (an austrian company who is pushing the Semantic Web topic really hard forward) was represented by Jana Herwig and published a few blog posts summarizing the talks of the event:
The proceedings are online with almost all presentations and links to the web sites which were used for the hands-on sessions.
Oh yes, of course there are pictures online on Flickr tagged with wodpd2008.
I got several emails these days from people who were not able to launch Conzilla anymore. The reason was an exception (“java.net.MalformedURLException: no !/ in spec”) during start up.
I investigated the problem (which is caused by a regression bug of Sun’s most recent Java 5.0, i.e. 1.5.0_16) and tried to work around it, but came to the conclusion – as many other developers who tried to solve the very same problem – that it is best to wait for a fix from Sun.
The reason is that it would require too many changes in the code and even some major refactoring. Apart from that, even third-party libraries as e.g. log4j are affected. Conzilla is not the only application which has been broken, basically all applications making use of Java Web Start are affected.
Bugs have been reported to Sun:
http://bugs.sun.com/view_bug.do?bug_id=6746185
http://bugs.sun.com/view_bug.do?bug_id=6753651
Let’s hope that Sun fixes this bug very soon, until then my recommendation is: Do not use JRE/JDK 1.5.0_16, and if you happen to use it, downgrade to an earlier release, or upgrade to 6.0/1.6.
I will keep you informed regarding this issue.
Two bug fixes:
Conzilla should update itself through Java Web Start when you start it next time.
Two bug fixes:
As usual, Conzilla should update itself through Java Web Start. Have fun.
I played around with Yahoo! Pipes and created an aggregating feed of all Summer School blog posts which have been registered at Pageflakes earlier this week.
Subscribe to it using your favorite feed reader: http://feeds.feedburner.com/scohrid.
I just uploaded the GPS track points of our excursion to St. Naum to Google Maps. Obviously we crossed the border to Albania.
I also geotagged my pictures, they are aligned on a map at flickr.
This is a maintenance release, fixing the following bugs:
Conzilla 2.2 requires a Java Runtime Environment in version 1.5 or newer and can be installed via the download page. If you already have an installation of Conzilla 2.1 it should be sufficient to launch Conzilla via the shortcuts. Java Web Start will then take care of the upgrade.
If you have comments or suggestions you can send them directly to the Conzilla mailing lists.
I just released Conzilla 2.2.2 together with Collaborilla 1.1. The biggest improvement of these versions is the switch to RESTful web services, which makes it finally possible to access Collaborilla even in very restrictive networks – the new services use standard HTTP port 80 which shouldn’t be a problem anymore. To make the picture complete, I also added support for HTTP proxies, so there is no excuse anymore for not being able to use Conzilla.
The noteworthy changes since version 2.2.1:
Go and get it. Or if you already have an older version: just launch it via Java Web Start, the upgrade should then take place automatically.
The Conzilla team is proud to announce the release of Conzilla 2.2.
This is a usability release for improving the user experience and making it easier to perform collaborative conceptual modeling.
The major improvements since version 2.1 are:
… and many more bugfixes and new features, see the automatically generated change log of our bugtracker for details!
Conzilla 2.2 requires a Java Runtime Environment in version 1.5 or newer and can be installed via the download page. If you already have an installation of Conzilla 2.1 it should be sufficient to launch Conzilla via the shortcuts. Java Web Start will then take care of the upgrade.
If you have comments or suggestions you can send them directly to the Conzilla mailing lists.
Hannes Ebner on development and research 