CSS et Java/Struts/JSP

Bonjour à tous,

Je suis actuellement sur un projet JEE 5/Struts 1 qui fonctionne sous Tomcat 5.5.
Je tente actuellement de "maveniser" ce projet et d'inclure le plugin Jetty (7.6).

Pour le moment, je bloque sur la page de connexion (authentification FORM par j_security_check) qui n'arrive pas à récupérer les CSS/JS et autres données statiques correctement.

Lorsque je lance ma page web : "http://localhost:8081/MonProjet", le serveur redirige vers la page de connexion "http://localhost:8081/MonProjet/jsp/common/login.jsp". Cette modification d'URL pose problème car le navigateur n'arrive plus à récupérer la feuille de style à l'URL "./css/style.css".
Une fois que je me connecte, la redirection vers la page d'accueil fonctionne bien est l'URL est "http://localhost:8081/MonProjet/accueil.do"

L'arborescence de mon projet est la suivante :
Pièce jointe 276036

Le contenu de mon web.xml (une partie) :

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<?xml version="1.0" encoding="ISO-8859-1"?>
 
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
    version="2.4">
 
    <display-name>Projet</display-name>
    <context-root>/MonProjet</context-root>
    <context-param>
        <param-name>carto_url</param-name>
        <param-value>${carto.url}</param-value>
    </context-param>
 
    <listener>
        <listener-class>org.gci.web.listeners.HibernateListener</listener-class>
    </listener>
    <!-- Standard Action Servlet Configuration (with debugging) -->
    <servlet>
        <servlet-name>action</servlet-name>
        <servlet-class>org.gci.web.actions.ActionServlet</servlet-class>
        <init-param>
            <param-name>config</param-name>
            <param-value>/WEB-INF/struts-config.xml</param-value>
        </init-param>
        <init-param>
            <param-name>debug</param-name>
            <param-value>2</param-value>
        </init-param>
        <init-param>
            <param-name>detail</param-name>
            <param-value>2</param-value>
        </init-param>
        <init-param>
            <param-name>projectconfig</param-name>
            <param-value>/WEB-INF/cfg/config.xml</param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>servletLog4j</servlet-name>
        <servlet-class>org.gci.web.servlets.Log4jServlet</servlet-class>
        <init-param>
            <param-name>log4j-file</param-name>
            <param-value>WEB-INF/classes/log4j.properties</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>operationManager</servlet-name>
        <servlet-class>org.gci.web.servlets.PasserelleOperationServlet</servlet-class>
        <init-param>
            <param-name>defaultPollTime</param-name>
            <param-value>86400000</param-value>
        </init-param>
        <!-- polling time en millisecondes -->
        <load-on-startup>9</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>dailyManager</servlet-name>
        <servlet-class>org.gci.web.servlets.PasserelleDailyServlet</servlet-class>
        <init-param>
            <param-name>defaultPollTime</param-name>
            <param-value>86400000</param-value>
        </init-param>
        <!-- polling time en millisecondes -->
        <load-on-startup>9</load-on-startup>
    </servlet>
 
    <!-- Standard Action Servlet Mapping -->
    <servlet-mapping>
        <servlet-name>action</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
 
    <error-page>
        <error-code>403</error-code>
        <location>/jsp/erreurs/page403.jsp</location>
    </error-page>
    <error-page>
        <error-code>404</error-code>
        <location>/jsp/erreurs/notfound.jsp</location>
    </error-page>
    <error-page>
        <error-code>500</error-code>
        <location>/jsp/erreurs/interne.jsp</location>
    </error-page>
    <error-page>
        <error-code>408</error-code>
        <location>/jsp/erreurs/timeout.jsp</location>
    </error-page>
    <!-- Struts Tag Library Descriptors -->
    <jsp-config>
        <taglib>
            <taglib-uri>/tags/struts-bean</taglib-uri>
            <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
        </taglib>
 
        <taglib>
            <taglib-uri>/tags/struts-html</taglib-uri>
            <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
        </taglib>
 
        <taglib>
            <taglib-uri>/tags/struts-logic</taglib-uri>
            <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
        </taglib>
 
        <taglib>
            <taglib-uri>/tags/struts-nested</taglib-uri>
            <taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
        </taglib>
 
        <taglib>
            <taglib-uri>/tags/struts-tiles</taglib-uri>
            <taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
        </taglib>
        <taglib>
            <taglib-uri>/tags/struts-menu.tld</taglib-uri>
            <taglib-location>/WEB-INF/struts-menu.tld</taglib-location>
        </taglib>
    </jsp-config>
    <security-constraint>
        <web-resource-collection>
            <web-resource-name>Protected Area</web-resource-name>
            <url-pattern>*.do</url-pattern>
            <http-method>HEAD</http-method>
            <http-method>GET</http-method>
            <http-method>POST</http-method>
            <http-method>PUT</http-method>
            <http-method>DELETE</http-method>
        </web-resource-collection>
        <auth-constraint>
            <role-name>actif</role-name>
        </auth-constraint>
    </security-constraint>
    <login-config>
        <auth-method>FORM</auth-method>
        <realm-name>Authentication Area</realm-name>
        <form-login-config>
            <form-login-page>/jsp/common/login.jsp</form-login-page>
            <form-error-page>/jsp/erreurs/errorlogin.jsp</form-error-page>
        </form-login-config>
    </login-config>
    <security-role>
        <role-name>actif</role-name>
    </security-role>
    <resource-ref>
        <description>Oracle Datasource</description>
        <res-ref-name>jdbc/projet</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
    </resource-ref>
 
    <filter>
        <filter-name>DownloadFilter</filter-name>
        <filter-class>org.gci.web.util.DownloadFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>DownloadFilter</filter-name>
        <url-pattern>*.do</url-pattern>
    </filter-mapping>
 
    <!-- Timeout de sesssion (en minutes) -->
    <session-config>
        <session-timeout>25</session-timeout>
    </session-config>
</web-app>

La JSP login.jsp :

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<%@ include file="/jsp/tld.jsp"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
        <!-- HTTP 1.1 -->
        <meta http-equiv="Cache-Control" content="no-store" />
        <meta http-equiv="Refresh" content="600">
        <!-- HTTP 1.0 -->
        <meta http-equiv="Pragma" content="no-cache" />
        <!-- Prevents caching at the Proxy Server -->
        <meta http-equiv="Expires" content="0" />
        <title><bean:message key="authentification.title" /></title>
        <link rel="stylesheet" href="./css/gmao.css" type="text/css" media="all" />
        <script type="text/javascript">
            function setfocus() {
                document.loginForm.j_username.focus();
            }
        </script>
    </head>
 
    <script type="text/javascript" src="./scripts/fonctions.js"></script>
    <script language="javascript">
        closeOnExpire();
    </script>
    <%@ include file="/jsp/layout/blockUI.jsp"%>
    <body onload="setfocus();">
        <table width="100%" height="95%">
            <tr height="40px">
                <td style="text-align: center"><img
                    src="./images/bandeau_gauche_nc_3.gif" border="0" /><img
                    src="./images/gl_small.gif" border="0" /><img
                    src="./images/bandeau.gif" border="0" /><br>
                <br>
                <span style="font-size: 12; font-weight: bold">Application</span></td>
 
            </tr>
            <tr style="vertical-align: middle;">
                <td style="text-align: center;">
                    <form name="loginForm" action="j_security_check" method="post"
                        onsubmit="if (startsWith(false, j_username.value, 'voi')) j_username.value = j_username.value.toUpperCase();blockUI();">
                        <table style="width: 300px;" class="formulaire">
                            <tr>
                                <td colspan="2" class="title"><span class="title"><bean:message
                                            key="authentification.title" /></span></td>
                            </tr>
                            <tr>
                                <td class="label"><label for="j_username" class="required"><bean:message
                                            key="utilisateur.label.login" /> :</label></td>
                                <td class="field"><input type="text" name="j_username" /></td>
                            </tr>
                            <tr>
                                <td class="label"><label for="j_password" class="required"><bean:message
                                            key="utilisateur.label.password" /> :</label></td>
                                <td class="field"><input type="password" name="j_password"
                                    value="" /></td>
                            <tr>
                                <td colspan="2" class="buttonbar"><html:submit
                                        titleKey="bouton.valider" styleClass="valider"
                                        onmouseover="this.className='valider-hover'"
                                        onmouseout="this.className='valider'">
                                        <bean:message key="bouton.valider" />
                                    </html:submit></td>
                            </tr>
                        </table>
                    </form>
                </td>
            </tr>
        </table>
    </body>
</html>

Le contenu de mon pom.xml (plugin Jetty) :

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<plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>7.6.16.v20140903</version>
                <configuration>
                    <webAppConfig>
                        <contextPath>/MonProjet</contextPath>
                        <extraClasspath>src/main/resources/hibernate</extraClasspath>
                        <jettyEnvXml>src/main/resources/META-INF/jetty/jetty-env.xml</jettyEnvXml>
                    </webAppConfig>
                    <scanIntervalSeconds>10</scanIntervalSeconds>
                    <webAppSourceDirectory>${project.build.directory}/jetty-docroot</webAppSourceDirectory>
                    <connectors>
                        <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
                            <host>localhost</host>
                            <port>8081</port>
                            <maxIdleTime>60000</maxIdleTime>
                        </connector>
                    </connectors>
                </configuration>
                <executions>
                    <execution>
                        <id>jetty-run</id>
                        <phase>prepare-package</phase>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

Le jetty-env.xml :

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
    <New id="dataSource" class="org.eclipse.jetty.plus.jndi.Resource">
        <Arg>jdbc/projet</Arg>
        <Arg>
            <New class="com.mchange.v2.c3p0.ComboPooledDataSource">
                <Set name="driverClass">oracle.jdbc.driver.OracleDriver</Set>
                <Set name="jdbcUrl">jdbc:oracle:thin:@xx.xx.xx.xx:1521:orcl</Set>
                <Set name="factoryClassLocation">org.apache.naming.factory.BeanFactory</Set>
                <Set name="user">login</Set>
                <Set name="password">password</Set>
 
                <Set name="minPoolSize">2</Set>
                <Set name="maxPoolSize">5</Set>
                <Set name="acquireIncrement">1</Set>
            </New>
        </Arg>
    </New>
 
    <Get name="securityHandler">
        <Set name="loginService">
            <New class="org.eclipse.jetty.plus.jaas.JAASLoginService">
                <Set name="Name">Authentication Area</Set>
                <Set name="LoginModuleName">authenticationModule</Set>
            </New>
        </Set>
    </Get>
</Configure>

Ça fait déjà un certain temps que je cherche mais sans résultat.
L'application fonctionne très bien sur Tomcat et je n'arrive pas à trouver où se situe la différence entre les 2 serveurs.

Merci d'avance pour votre aide