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https://issues.apache.org/struts/browse/WW-2240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=43034#action_43034
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Nils-Helge Garli commented on WW-2240:
--------------------------------------

Can you consistently reproduce the error with this example? I have tried and 
tried with the example war, but I can't see any NPE in my logs...

> FileUploadInterceptor causes null pointer exception
> ---------------------------------------------------
>
>                 Key: WW-2240
>                 URL: https://issues.apache.org/struts/browse/WW-2240
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Core Interceptors
>    Affects Versions: 2.1.0
>            Reporter: Benjamin McCann
>             Fix For: 2.1.1
>
>         Attachments: improvedLogging.patch, null context.jpg, 
> TestAction.java, webtest.war
>
>
> Using struts2-core-2.1.0-SNAPSHOT-20071003.jar, I received the following:
> java.lang.NullPointerException
>       at 
> org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:277)
>       at 
> com.opensymphony.xwork2.DefaultActionInvocation$1.doProfiling(DefaultActionInvocation.java:229)
>       at 
> com.opensymphony.xwork2.DefaultActionInvocation$1.doProfiling(DefaultActionInvocation.java:228)
>       at 
> com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>       at 
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:226)
> My action was able to access the File, so it must have been something in the 
> cleanup.  My action was very similar to the one found in this tutorial 
> http://www.roseindia.net/struts/struts2/struts-2-file-upload.shtml

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