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From Manoj.Sha...@nevagroup.com
Subject Re: Help for File Upload error
Date Fri, 31 Oct 2014 06:54:25 GMT
Hi All,
           This issue may be because of same name class being loaded in 
two different ways by two different loaders on the same name. Make sure 
you don't include any extra jars. 

with regards
Manoj Kumar Sharma





Re: Help for File Upload error

Lukasz Lenart 
to:
Struts Users Mailing List
10/31/2014 11:56 AM

Please respond to "Struts Users Mailing List"






Too many commons-fileupload.jar ?

2014-10-31 7:18 GMT+01:00 Arpan <arpan.debroy@gmail.com>:
> HI All,
>
> I am getting a linkagge error while doing file upload operation. I am 
using
> fileupload interceptor. Can anyone please tell me how to get rid of that
> error.
>
> Thanks
> Arpan
>
> java.lang.LinkageError: loader constraint violation: when resolving 
method
> 
"org.apache.commons.fileupload.servlet.ServletFileUpload.<init>(Lorg/apache/commons/fileupload/FileItemFactory;)V"
> the class loader (instance of 
org/eclipse/jetty/webapp/WebAppClassLoader)
> of the current class,
> org/apache/struts2/dispatcher/multipart/JakartaMultiPartRequest, and the
> class loader (instance of java/net/URLClassLoader) for resolved class,
> org/apache/commons/fileupload/servlet/ServletFileUpload, have different
> Class objects for the type
> 
he.commons.fileupload.servlet.ServletFileUpload.<init>(Lorg/apache/commons/fileupload/FileItemFactory;)V
> used in the signature
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest.parseRequest(JakartaMultiPartRequest.java:187)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest.processUpload(JakartaMultiPartRequest.java:127)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.multipart.JakartaMultiPartRequest.parse(JakartaMultiPartRequest.java:92)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.multipart.MultiPartRequestWrapper.<init>(MultiPartRequestWrapper.java:81)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.Dispatcher.wrapRequest(Dispatcher.java:803)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.ng.PrepareOperations.wrapRequest(PrepareOperations.java:134)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> org.eclipse.jetty.server.Server.handle(Server.java:370)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
> INFO   | jvm 1    | 2014/10/31 11:47:01 |     at
> java.lang.Thread.run(Unknown Source)

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