java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileUploadException

[damodaran puliyassery]

i am trying to upload files from my flex RIA to server.But i am getting this error in eclipse console

   
java.lang.ClassNotFoundException: org.apache.commons.fileupload.FileUploadException
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1386)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
	at java.lang.Class.getConstructor0(Unknown Source)
	at java.lang.Class.newInstance0(Unknown Source)
	at java.lang.Class.newInstance(Unknown Source)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1089)
	at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:791)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:127)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
	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:174)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:873)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
	at java.lang.Thread.run(Unknown Source)

 

thanks in advance

[Ulf Dittmer]

Have you added the FileUpload library to the runtime classpath? Keep in mind that the runtime classpath is different from the compile-time classpath - it consists of the WEB-INF/classes and WEB-INF/lib directories of the web app in question.

[damodaran puliyassery]

Sir i added the jar files in library path.
Any other methods available in eclipse to add the jar files???

[David Newton]

It needs to be deployed, not just available at compilation.

[Jitmer Jijo]

All,

If you are getting the exception copy both commons_io.jar and commons_file_upload.jar files to the WEB_INF/lib folder of the war file in the app/web server.
[size=12]It should work. Some IDE s don't automatically put the jar files in the library path to the deployment war files in the server.[/size]