execAndWait in 2.1.6 gives the following exception when it kicks in: (code pasted below)
java.lang.UnsupportedOperationException ??? java.util.Collections$UnmodifiableMap.put(Collections.java:1285) ??? org.apache.struts2.interceptor.ExecuteAndWaitInterceptor.doIntercept(ExecuteAndWaitInterceptor.java:256) ??? com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) ??? com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) ??? com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195) ??? com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87) ??? com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236) ??? org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52) ??? org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468) ??? org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395) ??? org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) ??? org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ??? org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) ??? org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) ??? org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) ??? org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) ??? org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) ??? org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) ??? org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) ??? org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) ??? org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) ??? java.lang.Thread.run(Thread.java:619) CODE: Input JSP: (WEB-INF/content/all/index.jsp <%@ taglib prefix="s" uri="/struts-tags"%> <html> ??? <head> ??? ??? <title>Hello World</title> ??? </head> ??? <body> ??? ??? <h3> ??? ??? ??? Enter Your Name ??? ??? </h3> ??? ??? <div> ??? ??? ??? <s:form action="say-hello"> ??? ??? ??? ??? <s:textfield label="Name:" name="userName" size="30" maxlength="30" /> ??? ??? ??? ??? <s:submit value="Submit" /> ??? ??? ??? </s:form> ??? ??? </div> ??? </body> </html> ============ Configuration (struts.xml) <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC ??? "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" ??? "http://struts.apache.org/dtds/struts-2.0.dtd";> <struts> ??? <constant name="struts.enable.DynamicMethodInvocation" value="false" /> ??? <constant name="struts.devMode" value="true" /> ??? <constant name="struts.convention.classes.reload" value="true" /> ??? <constant name="struts.convention.action.disableScanning" value="true" /> ??? ??? <package name="all" namespace="/all" extends="struts-default"> ??? ??? <action name="say-hello" class="actions.all.SayHelloAction"> ??? ??? ??? <interceptor-ref name="params" /> ??? ??? ??? ??? ??? ??? <interceptor-ref name="execAndWait"> ??? ??? ??? ??? <param name="delay">1000</param> ??? ??? ??? ??? <param name="delaySleepInterval">50</param> ??? ??? ??? </interceptor-ref> ??? ??? ??? ??? ??? ??? <result name="success">/WEB-INF/content/all/say-hello-success.jsp ??? ??? ??? </result> ??? ??? </action> ??? </package> </struts> ======= Action (actions.all.SayHelloAction.java) package actions.all; import java.util.Date; public class SayHelloAction{ ??? private static final long serialVersionUID = 1L; ??? private String userName; ??? public String execute() throws Exception { ??? ??? wasteTime(10000); ??? ??? return "success"; ??? } ??? public String getUserName() { ??? ??? return userName; ??? } ??? public void setUserName(String userName) { ??? ??? this.userName = userName; ??? } ??? ??? private void wasteTime(long time){ ??? ??? long start = new Date().getTime(); ??? ??? while(new Date().getTime()-start < time){ ??? ??? ??? try { ??? ??? ??? ??? Thread.sleep(100L); ??? ??? ??? } catch (InterruptedException e) { ??? ??? ??? ??? e.printStackTrace(); ??? ??? ??? } ??? ??? } ??? } } ===== Output page (WEB-INF/content/all/say-hello-success.jsp) <%@ taglib prefix="s" uri="/struts-tags"%> <html> ??? <head> ??? ??? <title>Hello Success</title> ??? </head> ??? <body> ??? Hello <s:property value="userName" /> ??? </body> </html> Cheers Chris M.
