By the way, I'm definitely using the latest version of JBoss-Spring, and this doesn't look like a Spring version issue because the class/method involved are from JBoss-Spring. java.lang.NoSuchMethodError: org.jboss.spring.factory.NamedXmlBeanDefinitionReader.createReaderContext(Lorg/springframework/core/io/Resource;)Lorg/springframework/beans/factory/support/ReaderContext; View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3975015#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...