| Http status 500 - Argument is null exception shown on screen [message #803327] |
Tue, 21 February 2012 07:32 |
 Avrajit Chatterjee
Messages: 68
Registered: September 2011 |
Member |
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Hi,
Sometimes we get this unusual error when we do random clicks on our RAP application.
"java.lang.IllegalArgumentException:Argument cannot be null". This cannot be always reproduced. The most annoying part is that it shows a HTTP Status 500 with the full stack trace on the browser screen.I see in the Table code , it does SWT.error call. I have updated the ErrorHandler.js file processJavaScriptErrorInResponse and processJavaScriptError methods to suppress errors being displayed on the screen and I know these wont help as its a server error. I have a few questions -
1. Is this a known error as I am unable to find an issue with the code.
Any hints/pointers to what I may be doing wrong is welcome.
2. How can I prevent this error from breaking the application and being displayed on the screen? I feel that I can show an error page on this occasion using the general Servlet-Error page mechanism. But I dont want to that. I want the error to be logged in my server logs and application to run smoothly.
3. Does SWT.error logs shows on the screen? If so, I think there will be a way to suppress them.
I am using RAP 1.5m4.
Any help is appreciated.
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