Benefits (and tips) of an upgrade from JBoss 4.2.x to JBoss 5.x, 6.x, 7.x and WildFly 8.x?
I’ve upgraded from JBoss 4 to 5 and from experience the following are the most important to note: JBoss 5 (and 6 and 7) are not as forgiving as JBoss 4 with XML files. You must make sure that all your deployment descriptor XML files are valid. You may be using DTDs in some files … Read more