Custom error page is not loaded

I got the web.xml > pages tab > error pages > add

Then I added the values for error page location and exception type as follows:

Error page location : /Error.jsp

Exception type: java.jang.ArithmeticException

Now I created Test.jsp with a button. The action method of the button is having this statement: float a =1/0;

Now I tested my application by clicking the button at Test.jsp. Now Error.jsp is not loaded but the usual error handling page is loaded !! Why the Error.jsp is not loaded? Am I missing anything?

Thank you.

[575 byte] By [MISS_DUKE] at [2007-11-26 10:03:09]