JSF and MyFaces (... PropertyNotFoundException: Base is null: ...)

Question

Hello to all,
I am developing an educative system for it I am using JSF 1.1.01 and MyFaces 1.1.1 on Eclipse 3.1.0 and Exadel 3.0.4, but a problem appeared: everything walks well when I am developing on eclipse and exadel, but when I install the application in the server tomcat (I use jakarta-tocmat-5.5.9) leaves an error to me the type:
javax.faces.el.PropertyNotFoundException: Base is null: Login
        at org.apache.myfaces.el.ValueBindingImpl.resolveToBaseAndProperty(ValueBindingImpl.java:455)
        at org.apache.myfaces.el.ValueBindingImpl.getType(ValueBindingImpl.java:169)
        at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:111)
        at javax.faces.component.UIInput.getConvertedValue(UIInput.java:713)
        at javax.faces.component.UIInput.validate(UIInput.java:638)
        at javax.faces.component.UIInput.executeValidate(UIInput.java:849)
        at javax.faces.component.UIInput.processValidators(UIInput.java:412)
        at javax.faces.component.UIForm.processValidators(UIForm.java:170)
        at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:912)
        at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:342)
        at org.apache.myfaces.lifecycle.LifecycleImpl.processValidations(LifecycleImpl.java:240)
        at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:122)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
        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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
        at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
        at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
        at java.lang.Thread.run(Unknown Source)Login is the Bean of the form of login to the system and now to know as it was the problem clears the labels and libreries of myfaces and with this I start correctly. I am something confused since in eclipse it works correctly and in the server jakarta-tomcat is not thus.
thanks beforehand!

Answer 1

Hello thanks to respond,
Good, this are the code of the pages:
web.xml
<web-app>
     <display-name>Sistema Educativo TNAB</display-name>
     <context-param>
          <param-name>javax.faces.CONFIG_FILES</param-name>
          <param-value>
               /WEB-INF/faces-config.xml,
                        /WEB-INF/navigation-default.xml,
          </param-value>
     </context-param>
     <context-param>
          <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
          <param-value>client</param-value>
     </context-param>
     <context-param>
          <param-name>org.apache.myfaces.ALLOW_JAVASCRIPT</param-name>
          <param-value>true</param-value>
     </context-param>
     <context-param>
          <param-name>org.apache.myfaces.DETECT_JAVASCRIPT</param-name>
          <param-value>false</param-value>
     </context-param>
     <context-param>
          <param-name>org.apache.myfaces.PRETTY_HTML</param-name>
          <param-value>true</param-value>
     </context-param>
     <context-param>
          <param-name>org.apache.myfaces.AUTO_SCROLL</param-name>
          <param-value>false</param-value>
     </context-param>
     <filter>
          <filter-name>extensionsFilter</filter-name>
          <filter-class>
               org.apache.myfaces.component.html.util.ExtensionsFilter
          </filter-class>
          <init-param>
               <param-name>uploadMaxFileSize</param-name>
               <param-value>100m</param-value>
          </init-param>
          <init-param>
               <param-name>uploadThresholdSize</param-name>
               <param-value>100k</param-value>
          </init-param>
     </filter>
     <filter>
          <filter-name>SecurityFilter</filter-name>
          <filter-class>
               com.empowerment.sisedu.controller.session.SecurityFilter
          </filter-class>
     </filter>
     <filter-mapping>
          <filter-name>extensionsFilter</filter-name>
          <url-pattern>*.jsf</url-pattern>
     </filter-mapping>
     <filter-mapping>
          <filter-name>extensionsFilter</filter-name>
          <url-pattern>/faces/*</url-pattern>
     </filter-mapping>
     <filter-mapping>
          <filter-name>SecurityFilter</filter-name>
          <url-pattern>*.jsf</url-pattern>
     </filter-mapping>
     <servlet>
          <servlet-name>Faces Servlet</servlet-name>
          <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
          <load-on-startup>1</load-on-startup>
     </servlet>
     <servlet-mapping>
          <servlet-name>Faces Servlet</servlet-name>
          <url-pattern>*.jsf</url-pattern>
     </servlet-mapping>
     <welcome-file-list>
          <welcome-file>index.jsp</welcome-file>
     </welcome-file-list>
</web-app>
faces-config.xml
       <managed-bean>
          <managed-bean-name>Login</managed-bean-name>
          <managed-bean-class>
               com.empowerment.sisedu.action.session.Login
          </managed-bean-class>
          <managed-bean-scope>request</managed-bean-scope>
     </managed-bean>
        <navigation-rule>
          <from-view-id>/pages/index.jsp</from-view-id>
          <navigation-case>
               <from-outcome>login</from-outcome>
               <to-view-id>/pages/session.jsp</to-view-id>
          </navigation-case>
          <navigation-case>
               <from-outcome>error</from-outcome>
               <to-view-id>/pages/error-index.jsp</to-view-id>
          </navigation-case>
     </navigation-rule>
login.jsp
<%@ taglib prefix="f" uri="http://java.sun.com/jsf/core" %>
<%@ taglib prefix="h" uri="http://java.sun.com/jsf/html" %>
<f:view>
     <h:form id="Formulario">
        <h:outputText value="Usuario:" />
        <h:inputText accesskey="U" id="campo_login" styleClass="inputbox"
                size="15" value="#{Login.login}" />
        <h:outputText value="Contrasena: " />
        <h:inputSecret accesskey="C" id="campo_password" styleClass="inputbox"
                size="15" value="#{Login.password}" />
        <h:commandButton accesskey="I"  styleClass="button" value="Ingresar"
          action="#{Login.autenticar}" />
     </h:form>
     </f:view>
Login.java
package com.empowerment.sisedu.action.session;
import ....
public class Login {
    private String login;
    private String password;
    public Login() {}
    public String getLogin() { return this.login; }
    public void setLogin(String login) { this.login = login; }
    public String getPassword() { return this.password; }
    public void setPassword(String password) { this.password = password; }
    public String autenticar() {
        String outcome = NavigationResults.ERROR;
        ErrorMessage error = new ErrorMessage();
        if (validarCamposDatosUsuario()) {
            try {
                ControllerUtil.login(login, password);
                outcome = NavigationResults.LOGIN;
            } catch (NoExisteException e) {
                error.messageCustom("info", e.getMessage(), "ERROR AUTENTICACION USUARIO");
                outcome = NavigationResults.ERROR;
            } catch (ListaVaciaException e) {
                error.messageGeneral(e.getMessage());
                outcome = NavigationResults.ERROR;
            } catch (FalloSesionException e) {
                error.messageSession();
                outcome = NavigationResults.ERROR;
            } catch (HibernateException e) {
                error.messageGeneral(e.getMessage());
                outcome = NavigationResults.ERROR;
            FacesUtils.resetManagedBean(BeanNames.LOGIN_BEAN);
        return outcome;
    private boolean validarCamposDatosUsuario() {
        ErrorMessage error = new ErrorMessage();
        boolean outcome = true;
        if (!ValidatorUtil.dentroLimite(this.login, 5, 20)) {
            outcome = false;
            error.messageCustom("warn", "El campo usuario tiene " + this.login.length()
                    + " letras, pero debe tener entre 5 a 20 letras.", "ERROR VALIDACION: CAMPO USUARIO");
            return outcome;
        else if (!ValidatorUtil.esLetra(this.login)) {
            outcome = false;
            error.messageCustom("warn", "El campo usuario debe ser de solamente letras.",
                    "ERROR VALIDACION: CAMPO USUARIO");
            return outcome;
        if (!ValidatorUtil.dentroLimite(this.password, 5, 20)) {
            outcome = false;
            error.messageCustom("warn", "El campo contrase��a tiene "
                    + this.password.length() + " letras, pero debe tener entre 5 a 20 letras.",
                    "ERROR VALIDACION: CAMPO CONTRASENA");
            return outcome;
        return outcome;
}ControllerUtil.login(login, password) is the method of a class controller who validate to the user in the data base, this data base is PostgreSQL 8.0.1 and the handling with framework Hibernate 3.0....