Hi ml, I'm involved in a weblogic - Jboss migration. I got the following issue: weblogic has a configuration parameter, in weblogic.xml config file, named printNulls. This parameter allows weblogic to print "" instead of "null" when printing a null variable. I found that the parameter was introduced in weblogic since the specification says to print "null" and not an empty string (see http://groups.google.com/group/weblogic.developer.interest.jsp/browse_thr... ) Is there a way to configure JBoss in the same manner, or the only way is a code refactoring? Thanks P.