NullPointerException

[amit bhadre]

How to Handle NullPointerException in JSP?

[Prabhu Venkatachalam]

It is not advicable to catch RuntimeException and its subclasses.

Do you have any specific reasons to do? If so,

1. Write a JSP with page attribute isErrorPage="true", so that you will get exception implicit object avaliable for you to see what exception occured.

2. In the other JSP you can add errorPage="<pointing to the previous JSP>".

OR

1. Step-1 above

2. In web.xml(Deployment Decriptor),

<error-page>
<exception-type>java.lang.NullPointerException</exception-type>
<location>(pointing to the previous JSP you created)</location>
</error-page>

[Deepak Bala]

If you think you can recover from the exception I would suggest a c : catch block. What part of your code throws this ?