SEVERE: Servlet.service() for servlet action threw exception
java.lang.ClassNotFoundException: org.apache.commons.io.output.DeferredFileOutputStream
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        at org.apache.commons.fileupload.DefaultFileItemFactory.createItem(DefaultFileItemFactory.java:102)
        at org.apache.commons.fileupload.FileUploadBase.createItem(FileUploadBase.java:500)
        at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:367)
        at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:268)
        at org.apache.struts.upload.CommonsMultipartRequestHandler.handleRequest(CommonsMultipartRequestHandler.java:185)
        at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:405)
        at org.apache.struts.chain.commands.servlet.PopulateActionForm.populate(PopulateActionForm.java:50)
        at org.apache.struts.chain.commands.AbstractPopulateActionForm.execute(AbstractPopulateActionForm.java:60)
        at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
        at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:166)
        at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:175)
        at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:166)
        at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
        at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:857)
        at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:565)
        at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1509)
        at java.lang.Thread.run(Thread.java:619)