bonjour, voici ma configuration:

* apache-tomcat-6.0.26
* springframework 2.5.1

Mes jars dans mon dossier WEB-INF\lib sont

* commons-logging.jar
* javax.el.jar
* jstl-impl-1.2.jar
* junit-4.7.jar
* junit-4.7-src.jar
* junit-dep-4.7.jar
* servlet-api.jar
* spring.jar
* spring-web.jar
* spring-webmvc.jar
* spring-webmvc-portlet.jar
* spring-webmvc-struts.jar



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javax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/index_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:268)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 
cause mère
 
java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/index_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature
	org.apache.jsp.index_jsp._jspInit(index_jsp.java:30)
	org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52)
	org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:159)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)