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throwing exceptions in JSP  RSS feed

 
Keynes Paul Paul
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Hi
I'm using error pages to handle html error codes 500 and 400 , when the 500 error is handled i see a NullPointerException generated, so I have this error in web.xml so i can handle the error for the entire module. I ahev tested it in my local machine and also it works in the dev server.
Now, to make sure the error page is reliable , i am testing it and I want to simulate an error situation for which i need to generate a null pointer exception, So is there a way to generate this exception?

Regards,
Keynes.
 
Amit Degavekar
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Hi you can always thro nullpointer explicitely by using throws clause.
Otherwise do siple step.
Set any object to null and call it's method.
e.g.
String str = null;
str.toString();
this line will throw NullPointerException

Cheers!
 
It is sorta covered in the JavaRanch Style Guide.
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