Hola quisiera que m ayudaran a corregir el siguiente error al ejecutar mi sistema en TomCat 5 es al ingregar el user y password cuando m regresa ese error:
exception
javax.servlet.ServletException: org/apache/catalina/realm/RealmBase
org.apache.struts.actions.DispatchAction.dispatchM ethod(DispatchAction.java:294)
org.apache.struts.actions.DispatchAction.execute(D ispatchAction.java:187)
org.apache.struts.action.RequestProcessor.processA ctionPerform(RequestProcessor.java:431)
org.apache.struts.action.RequestProcessor.process( RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(Act ionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(Acti onServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet .java:710)
javax.servlet.http.HttpServlet.service(HttpServlet .java:803)
root cause
java.lang.NoClassDefFoundError: org/apache/catalina/realm/RealmBase
com.proyecto.sso.dao.UserService.authenticate(User Service.java:44)
com.proyecto.sso.actions.LoginAction.login(LoginAc tion.java:38)
sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.apache.struts.actions.DispatchAction.dispatchM ethod(DispatchAction.java:270)
org.apache.struts.actions.DispatchAction.execute(D ispatchAction.java:187)
org.apache.struts.action.RequestProcessor.processA ctionPerform(RequestProcessor.java:431)
org.apache.struts.action.RequestProcessor.process( RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(Act ionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(Acti onServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet .java:710)
javax.servlet.http.HttpServlet.service(HttpServlet .java:803)
Es super urgente espero y m puedan ayudar