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.deb...@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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