Exception Handler Error: Source File Error please help me out

Hai i have simply added a text field and a button and i am trying to submit the data entered in text field to the database by pressing button.It is compiling and running successfully. but when i press the button it is showing that exception handler : Source File error.
[283 byte] By [Srinivasan1983] at [2007-11-26 11:51:35]
# 1
Could you post initial part of the exception displayed in the Error Page. With out it, it is difficult to say what is happening!- Winston http://blogs.sun.com/winston
wjprakash at 2007-7-7 12:06:45 > top of Java-index,Development Tools,Java Tools...