HelloWorld is my ActionSupport class and the pop method is loading the values to countryList object of Country class type.
package example;
import com.opensymphony.xwork2.ActionSupport;
import java.util.ArrayList;
public class HelloWorld extends ActionSupport {
ArrayList<Country> countryList = new ArrayList<Country>();
public ArrayList<Country> getCountryList() {
return countryList;
}
public void setCountryList(ArrayList<Country> countryList) {
this.countryList = countryList;
}
public String pop() {
countryList.add(new Country("IND", "INDIA"));
countryList.add(new Country("PAK", "PAKISTAN"));
System.out.println("countryList " + countryList);
return SUCCESS;
}
@Override
public String execute() throws Exception {
return SUCCESS;
}
}
The struts.xml is
<struts>
<package name="example" namespace="/example" extends="struts-default">
<action name="HelloWorld" method="pop" class="example.HelloWorld">
<result name="success">/example/HelloWorld.jsp</result>
</action>
</package>
</struts>
and jsp page is:
<%@taglib uri="http://displaytag.sf.net" prefix="display" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title></title>
</head>
<body>
HAI
<display:table name="${countryList}" class="Country" uid="row" pagesize="20" sort="list" requestURI="/example/HelloWorld" >
<display:column property="id" title="ID" />
<display:column property="name" />
</display:table>
</body>
</html>
When i run this application,it shows the following error :
description The server encountered an internal error () that prevented it from fulfilling this request.
exception javax.servlet.ServletException: java.lang.SecurityException: class "org.apache.commons.collections.FastHashMap"'s signer information does not match signer information of other classes in the same package
root cause java.lang.SecurityException: class "org.apache.commons.collections.FastHashMap"'s signer information does not match signer information of other classes in the same packa
Please solve this.
