Bonjour,
Lorsque j'ouvre un document à complèter du site net entreprise, à l'ouverture de la 3ème étape les messages
suivants apparaissent :

java.lang.NullPointerException
at cnam.dsij.presentation.taglibs.TagEmpAssure.doStartTag(TagEm­pAssure.java:63)
at _jsp._renseignementAssure._jspService(_renseignementAssure.j­ava:102)
[SRC:/jsp/renseignementAssure.jsp:33]
at com.orionserver[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].http.OrionHttpJspPage.service(OrionHttpJspPage­.java:56)
at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:­350)
at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.j­ava:509)
at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413)­
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)­
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(Se­rvletRequestDispatcher.java:824)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardIn­ternal(ServletRequestDispatcher.java:330)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forward(S­ervletRequestDispatcher.java:222)
at org.apache.struts.action.RequestProcessor.doForward(RequestP­rocessor.java:1033)
at org.apache.struts.action.RequestProcessor.processForwardConf­ig(RequestProcessor.java:436)
at org.apache.struts.action.RequestProcessor.processActionForwa­rd(RequestProcessor.java:401)
at org.apache.struts.action.RequestProcessor.process(RequestPro­cessor.java:279)
at org.apache.struts.action.ActionServlet.process(ActionServlet­.java:1422)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.­java:523)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)­
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)­
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(Se­rvletRequestDispatcher.java:824)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardIn­ternal(ServletRequestDispatcher.java:330)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(­HttpRequestHandler.java:830)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHa­ndler.java:224)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHa­ndler.java:133)
at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker­.run(ReleasableResourcePooledExecutor.java:186)

Que peut-on faire? Le site concerné : dit que cela ne vient pas de chez eux et notre installateur n'a pas trouvé la solution ?
Merci d'avance

Configuration: Windows XP
Internet Explorer 7.0