"jaikiran" wrote : The XML parsers try to validate against the DTD which can either be available locally in the jar or on the internet at the specified URL. From what i know, the xml parsers first look for the DTD within the jar and if that fails, it tries to connect to the internet. does this mean that I can put the DTD in the jar files without chaning the DOCTYPE declaration in the XML files? where do I put the DTDs for datasources (e.g. jboss-ds_1_5.dtd) which are used by several jars? Claus View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192045#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...