I can not see any output on the console in a project with Wildfly 8.0.0.
If at any point in my code I make a System.out.println("Qualquer coisa") simply nothing appears on my Eclipse Kepler console.
The same project running with Apache Tomcat 7 generates output on the console with no problem.
What can it be?
Application servers are a little more complex, and they use loggers for this. The default output is not the same as a desktop app, for example. For you to properly see this log you should use something like:
import java.util.logging.Logger;
...
private static final Logger log = Logger.getLogger(SuaClasse.class.getName());
After that it's simple:
log.info("Mensagem");
log.warning("Mensagem");
log.severe("Mensagem");
log...
You will now have your logs in the IDE console, you can also look at the log file inside the server in the /standalone/log/server.log
Hugs