Grouper Users - Open Discussion List

[Colin Hudler <>]

My previous troubleshooting was probably a red-herring. Here's something 
else that I am more interested in. I think it is related and may provide 
better indications as to what is wrong. Also the problem makes the ui 
hard to use.

Only one of our many grouper environments has this problem, but I cannot 
detect any difference. Some are exact clones with no FS change 
whatsoever, yet do not exhibit this. *It happens with any browser and 
every time*. We're running 1.6.3.

The fault is easily triggered. Navigate to any group, then select 
"Manage members". Click "Change Display". The display setting is not 
saved, but the standard grouper-ui "Error" screen is displayed. The 
following is logged.

2012-01-06 10:33:39,844 ERROR ui.GrouperUiFilter:  UI error
java.lang.NullPointerException
        at java.io.File.<init>(File.java:222)
        at 
org.apache.commons.fileupload.disk.DiskFileItem.getTempFile(DiskFileItem.java:611)
        at 
org.apache.commons.fileupload.disk.DiskFileItem.getOutputStream(DiskFileItem.java:556)
        at 
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:362)
        at 
org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
        at 
edu.internet2.middleware.grouper.j2ee.GrouperRequestWrapper.initMultipartMap(GrouperRequestWrapper.java:175)
        at 
edu.internet2.middleware.grouper.j2ee.GrouperRequestWrapper.init(GrouperRequestWrapper.java:111)
        at 
edu.internet2.middleware.grouper.ui.GrouperUiFilter.initRequest(GrouperUiFilter.java:534)
        at 
edu.internet2.middleware.grouper.ui.GrouperUiFilter.doFilter(GrouperUiFilter.java:650)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at 
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
        at 
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
        at 
org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:774)
        at 
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
        at 
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:896)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
        at java.lang.Thread.run(Thread.java:619)
2012-01-06 10:33:39,856 ERROR ui.TileRecorderTag:  
javax.servlet.jsp.JspException: ServletException in 
'/WEB-INF/jsp/dynamicTile.jsp': NullPointerException:null

Note that this stacktrace is about the same as the one I was 
troubleshooting on the liteUI page. Here's some observations, but I'm 
hoping you can steer me in some certain direction.

- The tempfile setup for tomcat looks good. It can write files and owns 
the directory, etc.
- The form on that page is multipart/form-data. There is no file-upload 
input.
- GrouperRequestWrapper.initMultipartMap does indeed initialize 
servletFileUpload() and parse the request
- We're using tomcat 6.0.29
- Grouper-ui is rather stock here with no changes outside of the normal 
configuration files.
- GrouperRequestWrapper.initMultipartMap doesn't use a FileItemFactory, 
which is not correct use of the API, as far as I can tell. See 
<http://commons.apache.org/fileupload/apidocs/org/apache/commons/fileupload/servlet/ServletFileUpload.html>. 
On the other hand, I have no idea why it works everywhere else.

On 10/11/2011 02:46 PM, Chris Hyzer wrote:
> It works for me.  Can you reproduce it on the grouper demo server (google 
> finds link)?  :)
>
> Which browser are you using?
>
> Thanks,
> Chris
>
> -----Original Message-----
> From: 
>
>  
> [mailto:]
>  On Behalf Of Colin Hudler
> Sent: Tuesday, October 11, 2011 3:12 PM
> To: 
>
> Subject: [grouper-users] Error liteui member import
>
> Importing members from LiteUI (Advanced->Import) results in no web
> response, but the attached error is logged. What is going on? It doesn't
> happen every time, but most of the time. Seems to happen equally if "on
> screen" or file upload is selected.
>
>