I got an old application which I am moving to Jboss AS 5.1GA for security reasons mainly. history: orion jboss 3.2.3 jboss 3.2.8.SP1 On startup jboss tells me: FileNotFoundException: http://java.sun.com/j2ee/dtds/ejb-jar_1_2.dtd So I looked into my JARs and found an ejb-jar.xml with this header: (I also have some 2.0 ejb-jar.xml which do work): <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.2//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_1_2.dtd"> ... On jboss 5.1 it complains for not being able to resolve this DTD. 1) Where can I find this DTD? 2) Is there another DTD to which I can safely move? The XML seems not to be compatible with DTD 2.0 or 1.1 View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4264171#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...