JBoss on Linux

Lately I tried to run JBoss on my Linux-installation (KUBuntu 9). I got lots of java.lang.OutOfMemoryError: PermGen space errors while starting JBoss 5. First I thought that had something to…

Threads-alternative in JEE: using the timerservice

A common problem in in developing Java Enterprise (JEE or J2EE) application is working with threads, or more generally executing code asynchronously. Starting and instantiating threads in the old-fashioned java…

Open JMX consoles

If you search on google on DummyResourceAdapter, you’ll find (at least currently) a lot of open administration consoles of JBoss, the JMX-console. These consoles should not be available to the…

Distributed software with JGroups

JGroups A distributed application, where nodes of the application communicate with each other over a LAN using UDP. Each nodes discovers other nodes automatically, when a node crashes or shuts…

Lessons learnt using JBoss 5 clustering

Last week I spent some time getting clustering to work using JBoss 5.0.0 GA. I made a few mistakes and I thought I share them – even though they were…

Frustation on JBoss

For some application I need a notion of ‘shared state’ within a cluster of computers within a network. The software will have to run on JBoss. Yesterday I had successfully…