Java Logging Frameworks Explained - Part 1

Java logging frameworks are almost as prolific as Java web frameworks; but while one can understand that there are lots of ways of building web applications, it is rather harder to understand why there are so many frameworks for logging in Java; after all logging is simply sending a message to log is it not?

I recently gave a two talks at the Egypt Java Developer Conference in March 2012. The guys from Tech Eqypt were on hand to do interviews after the talk. My topics were:

• Tomcat performance tuning and,
• An Introduction to Liferay.

"SELinux - An introduction" was the title of the presentation I gave this evening, 26 March 2012, at the Jozi LUG. SELinux is one of those Linux features that many administrators quietly turn off so as to get on with the business of managing their servers; but of course its not considered polite to say this in public.

With the targeted policy there really is no reason why SELinux cannot be used by default in most installations with the strict policy only being used if it is really required. Of course there is also apparmor that can be used.

I have been avoiding using Hibernate for a while now. I have been using alternatives such as the reference implementations eclipselink or openjpa. But I have to keep up to date for our JBoss training sessions where the more developer focused training sessions often cover examples of using JBoss for EJBs. If you using JBoss then its safe to just use the contents of the <jboss-home>/clients directory and know its compatible with the version of JBoss you are running.

JBoss 6 can make use of a centralised java keystore to save all the passwords needed in configuration files in a single place thereby making them easier to manage and protect. No more worrying about clear-text passwords in xml files! This feature is only available to services that make use of the microcontainer for service instantiation as it uses the microcontainer annotations.