JSTL problem

Mmm, In my servlet I implement this portion code -->

java.util.Collection idiomes =
com.gmsoft.model.dao.DAOFactory.createIdiomaDAO().findAll();
request.setAttribute("languajes", idiomes);
						
dispatcher =
getServletContext().getRequestDispatcher("/content/admin/manufacturers/newManufacturer.jsp");

And in newManufacturer.jsp -->



...
<core:forEach items='${requestScope.languajes}' var="languaje">   
<<<<<<<<<<<<<<<<<<<<<<<<<
  <td>
    <core:out value="${languaje.descripcio}:"/>   
	<input type="text" name="<core:out
value="webLangId${languaje.codi}"></core:out>" size="64"/>
    </td>
</core:forEach>
...


the result is -->

/content/admin/manufacturers/newManufacturer.jsp(44,9) According to TLD or
attribute directive in tag file, attribute items does not accept any
expressions
org.apache.jasper.JasperException:
/content/admin/manufacturers/newManufacturer.jsp(44,9) According to TLD or
attribute directive in tag file, attribute items does not accept any
expressions
	at
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
	at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
	at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
	at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at
com.gmsoft.Controller.ServletController.doPost(ServletController.java:122)
	at com.gmsoft.Controller.ServletController.doGet(ServletController.java:38)
	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 com.gmsoft.hibernate.HibernateFilter.doFilter(HibernateFilter.java:35)
	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.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:754)
	at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:684)
	at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)
	at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Thread.java:595)

Can you say me What's happen?
Thanks in advance.
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