ServletFileUpload lance une IOFileUploadException "Stream ended unexpectedly"

**legentil** · 07/07/2010, 11h31

Bonjour,

Je bloque depuis quelques jours usr un problème d'upload de fichier (j'y connais pas grand chose faut dire

)

J'utilise pour cela la classe :
org.apache.commons.fileupload.servlet.ServletFileUpload.ServletFileUpload

Mon upload fonctionne avec des petits fichiers mais quand le fichier est trop gros (avec un fichier de 80ko sur mon serveur local et avec un fichier de 3ko sur la machine distante...), une exception est lancée :

Code :

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org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:359)
	at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
	at ext.tdp.massdownload.MassDownloadJSPUtilBean.uploadCosFile(MassDownloadJSPUtilBean.java:519)
	at org.apache.jsp.netmarkets.jsp.ext.massdownload.FileUploader_jsp._jspService(FileUploader_jsp.java:1491)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.ptc.core.components.filter.JCARedirect.doFilter(JCARedirect.java:248)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.httpgw.filter.WTContextBeanFilter.doFilterInternal(WTContextBeanFilter.java:69)
	at wt.httpgw.filter.WTContextBeanFilter.doFilter(WTContextBeanFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.RequestInterrupter.doFilter(RequestInterrupter.java:326)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.ServletRequestMonitor.doFilter(ServletRequestMonitor.java:1013)
	at wt.servlet.ServletRequestMonitorFilter.doFilter(ServletRequestMonitorFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.commons.fileupload.MultipartStream$MalformedStreamException: Stream ended unexpectedly
	at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:964)
	at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:887)
	at java.io.InputStream.read(InputStream.java:89)
	at org.apache.commons.fileupload.util.Streams.copy(Streams.java:94)
	at org.apache.commons.fileupload.util.Streams.copy(Streams.java:64)
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:354)
	... 38 more
request headers:
	accept=image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, */*
	referer=http://p75.scorp.local:8090/tdp/netmarkets/jsp/ext/massdownload/FileChooser.jsp?searchSessionId=orgadmin_ff25dfb:129ac3191d5:-7fe4
	accept-language=fr
	content-type=multipart/form-data; boundary=---------------------------7daa3d1004ca
	accept-encoding=gzip, deflate
	user-agent=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; MS-RTC LM 8; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)
	host=p75.scorp.local:8090
	content-length=94244
	connection=Keep-Alive
	Cache-Control=no-cache
	cookie=action_number=83; JSESSIONID=8135C5316AF3B1D79205DEFB2119B05A
	authorization=Basic b3JnYWRtaW46b3JnYWRtaW4=
	Max-Forwards=10
request parameters:
	searchSessionId=orgadmin_ff25dfb:129ac3191d5:-7fe4

Mon code qui permet mon upload est :

Code :

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boolean isMultipart = ServletFileUpload.isMultipartContent(request);
 
		if (isMultipart) {
 
			// Create a factory for disk-based file items
			DiskFileItemFactory factory = new DiskFileItemFactory();
			factory.setSizeThreshold(DiskFileItemFactory.DEFAULT_SIZE_THRESHOLD * 2);
 
			// Create a new file upload handler
			ServletFileUpload upload = new ServletFileUpload(factory);
 
			// Parse the request (**L'EXCEPTION EST LANCEE ICI**)
			List<FileItem> items = upload.parseRequest(request);
		}

Voilà je sais pas trop comment faire, j'ai essayé de voir les classes ServletFileUpload avec le debugger mais ça m'a pas appris grand chose...

Si quelqu'un a une idée, je suis preneur !

Merci !

**legentil** · 31/08/2010, 15h29

Bonjour,

J'avais laissé ce problème de côté, et je dois m'y repencher aujourd'hui.
J'ai remarqué que selon le fichier que j'essayait d'uploader, la stack trace n'était pas la même.

1er fichier (9Ko) :

Code :

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org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly
---------- JCA Exception ----------
org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:359)
	at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
	at ext.tdp.massdownload.MassDownloadJSPUtilBean.uploadCosFile(MassDownloadJSPUtilBean.java:520)
	at org.apache.jsp.netmarkets.jsp.ext.massdownload.FileUploader_jsp._jspService(FileUploader_jsp.java:1491)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.ptc.core.components.filter.JCARedirect.doFilter(JCARedirect.java:248)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.httpgw.filter.WTContextBeanFilter.doFilterInternal(WTContextBeanFilter.java:69)
	at wt.httpgw.filter.WTContextBeanFilter.doFilter(WTContextBeanFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.RequestInterrupter.doFilter(RequestInterrupter.java:326)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.ServletRequestMonitor.doFilter(ServletRequestMonitor.java:1013)
	at wt.servlet.ServletRequestMonitorFilter.doFilter(ServletRequestMonitorFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.commons.fileupload.MultipartStream$MalformedStreamException: Stream ended unexpectedly
	at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:964)
	at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:887)
	at java.io.FilterInputStream.read(FilterInputStream.java:111)
	at org.apache.commons.fileupload.util.LimitedInputStream.read(LimitedInputStream.java:125)
	at java.io.FilterInputStream.read(FilterInputStream.java:90)
	at org.apache.commons.fileupload.util.Streams.copy(Streams.java:94)
	at org.apache.commons.fileupload.util.Streams.copy(Streams.java:64)
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:354)
	... 38 more
request headers:
	host=p75.scorp.local:8092
	connection=keep-alive
	referer=http://p75.scorp.local:8092/tdd/netmarkets/jsp/ext/massdownload/FileChooser.jsp?searchSessionId=orgadmin_7f7a57be:12ac835b09b:-7fea
	content-length=13086
	Cache-Control=max-age=0
	authorization=Basic b3JnYWRtaW46b3JnYWRtaW4=
	Origin=http://p75.scorp.local:8092
	content-type=multipart/form-data; boundary=----WebKitFormBoundaryc0zdgIsM5x60kk6o
	accept=application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
	user-agent=Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.41 Safari/534.3
	accept-encoding=gzip,deflate,sdch
	accept-language=fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4
	accept-charset=ISO-8859-1,utf-8;q=0.7,*;q=0.3
	cookie=nmwindowsize=create%3D684x674%26265x71%3B; JSESSIONID=1C9365110F3FB5575527D1E24B83C026; action_number=385
	Max-Forwards=10
request parameters:
	searchSessionId=orgadmin_7f7a57be:12ac835b09b:-7fea

2ond fichier (7ko)

Code :

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org.apache.commons.fileupload.FileUploadException: Stream ended unexpectedly
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:369)
	at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
	at ext.tdp.massdownload.MassDownloadJSPUtilBean.uploadCosFile(MassDownloadJSPUtilBean.java:520)
	at org.apache.jsp.netmarkets.jsp.ext.massdownload.FileUploader_jsp._jspService(FileUploader_jsp.java:1491)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.ptc.core.components.filter.JCARedirect.doFilter(JCARedirect.java:248)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.httpgw.filter.WTContextBeanFilter.doFilterInternal(WTContextBeanFilter.java:69)
	at wt.httpgw.filter.WTContextBeanFilter.doFilter(WTContextBeanFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.RequestInterrupter.doFilter(RequestInterrupter.java:326)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.ServletRequestMonitor.doFilter(ServletRequestMonitor.java:1013)
	at wt.servlet.ServletRequestMonitorFilter.doFilter(ServletRequestMonitorFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Thread.java:595)
Caused by:
org.apache.commons.fileupload.MultipartStream$MalformedStreamException: Stream ended unexpectedly
	at org.apache.commons.fileupload.MultipartStream.readHeaders(MultipartStream.java:542)
	at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.findNextItem(FileUploadBase.java:859)
	at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.hasNext(FileUploadBase.java:916)
	at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:348)
	at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
	at ext.tdp.massdownload.MassDownloadJSPUtilBean.uploadCosFile(MassDownloadJSPUtilBean.java:520)
	at org.apache.jsp.netmarkets.jsp.ext.massdownload.FileUploader_jsp._jspService(FileUploader_jsp.java:1491)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at com.ptc.core.components.filter.JCARedirect.doFilter(JCARedirect.java:248)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.httpgw.filter.WTContextBeanFilter.doFilterInternal(WTContextBeanFilter.java:69)
	at wt.httpgw.filter.WTContextBeanFilter.doFilter(WTContextBeanFilter.java:49)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.RequestInterrupter.doFilter(RequestInterrupter.java:326)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at wt.servlet.ServletRequestMonitor.doFilter(ServletRequestMonitor.java:1013)
	at wt.servlet.ServletRequestMonitorFilter.doFilter(ServletRequestMonitorFilter.java:55)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
	at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
	at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
	at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
	at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Thread.java:595)
request headers:
	host=p75.scorp.local:8092
	connection=keep-alive
	referer=http://p75.scorp.local:8092/tdd/netmarkets/jsp/ext/massdownload/FileChooser.jsp?searchSessionId=orgadmin_7f7a57be:12ac835b09b:-7fea
	content-length=11302
	Cache-Control=max-age=0
	authorization=Basic b3JnYWRtaW46b3JnYWRtaW4=
	Origin=http://p75.scorp.local:8092
	content-type=multipart/form-data; boundary=----WebKitFormBoundaryMcCRJn6ilvVZxq6o
	accept=application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
	user-agent=Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.41 Safari/534.3
	accept-encoding=gzip,deflate,sdch
	accept-language=fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4
	accept-charset=ISO-8859-1,utf-8;q=0.7,*;q=0.3
	cookie=nmwindowsize=create%3D684x674%26265x71%3B; JSESSIONID=1C9365110F3FB5575527D1E24B83C026; action_number=387
	Max-Forwards=10
request parameters:
	searchSessionId=orgadmin_7f7a57be:12ac835b09b:-7fea

La seconde stack trace est provoquée par le lancement de l'exception (dans readByte() de org.apache.common.fileUpload.MultipartStream) :

Code :

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throw new IOException("No more data is available");

Je ne sais pas si la différence entre ces 2 exceptions est due au fait que le fichier passe la taille de 8ko... en tout cas, lors de l'upload de fichier très gros ( et donc la première stack trace apparaît), l'upload du fichier se passe bien jusqu'à 100% (ou pas loin en tout cas) avant de planter

Je sèche complet sur ce prblème, quelqu'un aurait une idée??

Merci d'avance !