This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
i use JNDI to read some configuration variables... but problem is that sometimes it works but sometimes it does not (without reconfiguring tomcat in between). I use 5.5.7 on java 1.5.0_02 (and I tried this on Windows and Linux).