I was also receiving the very cryptic 500 NULL error; in circumstances very similar to the above. I ended up tracking this down to java.lang.String.URLDecode(), which throws a java.lang.IllegalArgumentException if a '%' character is not followed by a valid 2-digit hexadecimal number. So, for instance, if you're passing urlEncoded value of %F1 you're fine, but if you pass %G1 you get the 500 NULL error.
What was happening on our end, was that there was a page using the JavaScript method escape(). The escape method fails to handle non-ASCII characters correctly. So if you're passing Unicode, or other fun characters via a form POST, you'll end up with weird strings like %G1. The fix was to use an alternative encoding method encodeURI(). HTH >T Lux wrote: > >For what its worth, an application of mine just started receiving this >same error. I just tracked down the customer machine that is causing the >error and I'm asking the client to get ahold of that customer in an >effort to figure out what all is going on. From the headers it seems >that its IE 6. The only oddity I see in the useragent string is that the >customer has InfoPath installed, which seems to be a MS product for >dealing with forms in your browser >(http://office.microsoft.com/en-us/infopath/FX100487661033.aspx). I >suppose that could be a source of malformed requests. Beyond that, the >request that we are dealing with is a timed XmlHTTPRequest Post of an >xml string. Doesn't seem to cause problems anywhere else, just this one >browser. > >Oh and for posterities sake, when looking at Ethereal, the cause of the >500 Error seems to be TCP Checksum Incorrect errors. So that makes me >start thinking network issues between the client and then server. > >Thats all I have to go on so far. Hope this helps someone out. > >Judah ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Create Web Applications With ColdFusion MX7 & Flex 2. Build powerful, scalable RIAs. Free Trial http://www.adobe.com/products/coldfusion/flex2/?sdid=RVJS Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:280191 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
