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java.lang.NullPointerException: 	at org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)	at org.apache.commons.digester.Digester.parse(Digester.java:1572)	at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:738)	at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:687)	at org.apache.struts.action.ActionServlet.init(ActionServlet.java:333)	at javax.servlet.GenericServlet.init(GenericServlet.java:256)	at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2371)	at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4824)	at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4748)	at com.evermind.server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:2971)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:741)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)	at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239)	at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34)	at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:595)