test.war/WEB-INF/jboss-classloading.xml: <?xml version="1.0" encoding="UTF-8"?> <classloading xmlns="urn:jboss:classloading:1.0"      name="test.war"      domain="test.war.domain"      parent-first="false"      export-all="NON_EMPTY"      import-all="false"> </classloading> I get this error: 11:27:58,131 ERROR [[/test]](main) Servlet /test threw load() exception java.lang.IllegalArgumentException: Class [org.springframework.beans.factory.xml.SimplePropertyNamespaceHandler] does not implement the NamespaceHandler interface Looks like its still picking up classes from the spring v2 jar in the server lib directory. It seems that altering the classloading policy with the jboss-classloading.xml file works for the .sar but not the .war. Could someone advise me where I'm going wrong?