error upload (attach files)

[Pascal Garcia]

Bonjour, je rencentre une ereur quand j'esaie de attacher un fichier. L'ereur 
reçut est de type

  Detailed information:

         Error number 0 in 11: Uncaught exception
Wrapped Exception: null
com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception
Wrapped Exception: null
	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:162)
	at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
	at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275)
	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:161)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:245)
	at 
org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:50)
	at 
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:156)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:152)
	at 
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:127)
	at sun.reflect.GeneratedMethodAccessor92.invoke(Unknown Source)
	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275)
	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:217)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:197)
	at 
org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:50)
	at 
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:156)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:152)
	at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at 
org.objectweb.jonas.web.catalina55.ResetAuthenticationValve.invoke(ResetAuthenticationValve.java:62)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	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(Thread.java:595)


Wrapped Exception:

java.lang.NullPointerException
	at com.xpn.xwiki.web.UploadAction.action(UploadAction.java:51)
	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:145)
	at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
	at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
	at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
	at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:275)
	at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:161)
	at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:245)
	at 
org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:50)
	at 
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:156)
	at java.security.AccessController.doPrivileged(Native Method)
	at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:152)
	at 
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:127)



au niveu des log de jonas j'ai ça
Wrapped Exception:


java.lang.NullPointerException
at com.xpn.xwiki.web.UploadAction.action(UploadAction.java:51)
at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:145)
at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:243)
on

d'ou peut venir le probleme

Pascal GARCIA