In the last few days I’ve been experimenting with ActiveMQ, a JMS broker implementation by the Apache Foundation. I’m looking for innovative solutions to make our enterprise infrastructure more robust and flexible and this project looks very promising. Read the rest of this entry »

I don’t usually waste my time on java, but today I was in the right mood and tried to write a very simple network daemon, just to learn how hard it was. After some quick google I found that java can’t daemonize itself (it has no access to relevant native system calls) and therefore the Apache guys developed a nice component called org.apache.commons.daemon. I though Apache guys are smart, after all they developed the Apache web server, Subversion and more interesting stuff, so they have to know very well how a network daemon works. So I happily started with the test app, SimpleDaemon, bundled in the commons tar file, just to prove it works.

Unfortunately at the 1st attempt I got:

pioppo@roentgen ~/sandbox/daemon $ jsvc -verbose SimpleDaemon.class SimpleDaemon
24/12/2006 00:32:53 32525 jsvc error: Cannot execute JSVC executor process

Gosh, what is this?  Read the rest of this entry »