I'm using WLS 6.1 and trying to deploy a struts application in a WAR file contained in an EAR file. The WAR file by itself works fine. However, when I'm trying to deploy this through an EAR I get this ( old familar ) exception: java.lang.ClassCastException: org.apache.struts.util.PropertyMessageResources at org.apache.struts.util.RequestUtils.message(RequestUtils.java:565) at org.apache.struts.taglib.bean.MessageTag.doStartTag(MessageTag.java:239) at jsp_servlet._logon._jspService(_logon.java:130) at weblogic.servlet.jsp.JspBase.service(JspBase.java:27) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:263) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:302) at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200) at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2390) at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) Anyone have any idea?