java.lang.NullPointerException with large attach

[Migrated From Jforum.net]

Hi,
I get this error message when I try to upload a large file attach (with large I mean 729kb) :

java.lang.NullPointerException
net.jforum.JForum.handleException(JForum.java:280)
net.jforum.JForum.service(JForum.java:205)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
net.jforum.util.legacy.clickstream.ClickstreamFilter.doFilter(ClickstreamFilter.java:59)

JForum 2.1.8 is on W2003 with tomcat 5.5 in a dedicated installation
The temp directory exists and it has the right grants. To check this I added a System.out.println("directory ===>" + tempDir); in getTempFile method of DiskFileItem class.

Any suggestions?

TIA
MDT

[originally posted on jforum.net by radar]

[Migrated From Jforum.net]

I made further tests I discovered the issue is with IE 7.
With IE 6 and FireFox 2.0 it works fine

TIA
[originally posted on jforum.net by radar]