eh? If your String is null, then it will display as null, if it is empty string it will display as empty string. I don't think jboss has too much to do with this
if the String is empty with nothing it display "null", but i hope it display ""(a String with "",not a String "null").
Weblogic6.1 has not this problem,Maybe Weblogic have handled the empty String to a "" String before sending to page.
I have to check the every String in every getXXX() method of Bean Class of every Entity Beans.