Bonjour, je viens de créer un formbean comme suit :

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package presentation.str;
 
import java.util.List;
import java.util.Vector;
 
import javax.servlet.http.HttpServletRequest;
import ma.corporate.planning.metier.Role;
 
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
 
public class RolesForm extends ActionForm  {
 
	private List<Role> roles = new Vector<Role>();
	private String action = "";
	private int idRole;
	private Role role = new Role();
 
	public List<Role> getRoles() {
		return roles;
	}
	public void setRoles(List<Role> roles) {
		this.roles = roles;
	}
	public String getAction() {
		return action;
	}
	public void setAction(String action) {
		this.action = action;
	}
	public int getIdRole() {
		return idRole;
	}
	public void setIdRole(int idRole) {
		this.idRole = idRole;
	}
	public Role getRole() {
		return role;
	}
	public void setRole(Role role) {
		this.role = role;
	}
	public ActionErrors validate(ActionMapping arg0, HttpServletRequest arg1) {
		ActionErrors errors = new ActionErrors();
 
		if ((getRole().getNomRole()== null) || ((getRole().getNomRole().length() < 1)))
		errors.add("nomRole", new ActionError("error.nomrole.vide"));
 
		return errors;
	}
 
}
et mon fichier struts-config.xml :
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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://struts.apache.org/dtds/struts-config_1_2.dtd">
 
<struts-config>
 <form-beans>
 	<form-bean name="cfc" type="presentation.str.ClientsForm"/>
 	<form-bean name="cfs" type="presentation.str.ServicesForm"/>
 	<form-bean name="cfr" type="presentation.str.RolesForm"/>
 </form-beans>
 <global-forwards>
 
  <forward name="VueClient" path="client.page"/>
  <forward name="addClient" path="ajoutclient.page"/>
  <forward name="editClient" path="editclient.page"/>
 
  <forward name="VueService" path="service.page"/>
  <forward name="addService" path="ajoutservice.page"/>
  <forward name="editService" path="editservice.page"/>
 
  <forward name="VueRole" path="role.page"/>
  <forward name="addRole" path="ajoutrole.page"/>
  <forward name="editRole" path="editrole.page"/>
 
 </global-forwards>
 <action-mappings>
 
	 <action 
	 path="/gestClient" 
	 name="cfc" 
	 type="presentation.str.ClientsAction" 
	 scope="session"
	 validate="false">	 
	</action>	
 
	<action 
	 path="/gestService" 
	 name="cfs" 
	 type="presentation.str.ServicesAction" 
	 scope="session"
	 validate="false">	 
	</action>	
 
	<action 
	 path="/gestRole" 
	 name="cfr" 
	 type="presentation.str.RolesAction" 
	 scope="session"
	 validate="false">	 
	</action>			  
 
 </action-mappings>
 
 <message-resources parameter="ApplicationResources"/>   
 <!-- Tiles Configuration -->
<plug-in className="org.apache.struts.tiles.TilesPlugin">
  <set-property property="definitions-config" value="/WEB-INF/tiles-defs.xml"/>
</plug-in>
 
</struts-config>
il m'affiche les erreurs suivantes :
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16:54:09,484 ERROR RequestUtils:304 - Error creating form bean of class presentation.str.RolesForm
java.lang.NullPointerException
	at org.apache.struts.config.FormBeanConfig.createActionForm(FormBeanConfig.java:212)
	at org.apache.struts.util.RequestUtils.createActionForm(RequestUtils.java:292)
	at org.apache.struts.util.RequestUtils.createActionForm(RequestUtils.java:191)
	at org.apache.struts.action.RequestProcessor.processActionForm(RequestProcessor.java:319)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:202)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)
16:54:09,500 ERROR RequestProcessor:284 - No action instance for path /gestRole could be created
java.lang.ClassNotFoundException: presentation.str.RolesAction
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
	at org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.java:117)
	at org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:143)
	at org.apache.struts.action.RequestProcessor.processActionCreate(RequestProcessor.java:280)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:218)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)
vous savez d'ou l'erreur ?