[jboss-user] [Beginner's Corner] - Re: Delpoyment exception on JBoss5.1, used to work fine on 4.0.3

Wolfgang Knauf [http://community.jboss.org/people/WolfgangKnauf] created the discussion "Re: Delpoyment exception on JBoss5.1, used to work fine on 4.0.3" To view the discussion, visit: http://community.jboss.org/message/568411#568411 -------------------------------------------------------------- Hi, does your application contain the Xerces XML parser libraries? This error message points at this problem: Caused by:  java.lang.ClassCastException:  org.apache.xerces.parsers.XML11Configuration cannot be cast to  org.apache.xerces.xni.parser.XMLParserConfiguration As JBoss already bundles Xerces, easiest fix is to remove all XML parser related JARs from your app. If this is not possible, you have to play around with classloader configuration. Best regards Wolfgang -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/568411#568411] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]