It appears to be this line:

MultipartConfigElement config = new
MultipartConfigElement(tempdir.getCanonicalPath(), _maxFileSize,
_maxRequestSize, _fileOutputBuffer);

Which means that tempdir is probably null for some reason.  The line
appears in the jetty-8 branch; it was merged in from jetty-8-historical in this
commit<http://git.eclipse.org/c/jetty/org.eclipse.jetty.project.git/commit/?h=jetty-8&id=17e907c2fbd6a4537ac1b609165115bc40efaa67>
.
It first appeared in jetty-8-historical in this
commit<http://git.eclipse.org/c/jetty/org.eclipse.jetty.project.git/commit/?h=jetty-8-historical&id=437c53cd66fcce7861b7a66d0ac9dea62180ca7b>

I managed to get it working for me by using the 7.6.0.RC2 version of
jetty-servlets.jar

Hope this was maybe a little bit helpful.

-Steve

On Sat, Dec 24, 2011 at 11:09 PM, Steven Arcangeli <[email protected]>wrote:

> I'm getting a NPE when I try to upload a file.  This happened right after
> upgrading to 8.1.0.RC2.  Previously I was on 7.0.2 with no problems.
>  Haven't tested it on any other versions.  It's possible I'm passing it the
> wrong set of DispatcherTypes?  I've included the stack trace and the final
> log statement.  I'm running it from an embedded server and can provide the
> server code if you like.  Any ideas?
>
> Merry Christmahanakwanzika!
> -Steve
>
> 2011-12-24 22:32:45,018 [qtp58472846-24] WARN
>  org.eclipse.jetty.servlet.ServletHandler  - /upload.html
> java.lang.NullPointerException
>  at
> org.eclipse.jetty.servlets.MultiPartFilter.doFilter(MultiPartFilter.java:132)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1336)
>  at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
>  at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1061)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:412)
>  at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:995)
>  at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:47)
>  at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
> at org.eclipse.jetty.server.Server.handle(Server.java:351)
>  at
> org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:451)
> at
> org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:931)
>  at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:870)
> at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:233)
>  at
> org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:75)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:615)
>  at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:45)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598)
>  at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533)
> at java.lang.Thread.run(Thread.java:662)
>
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