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NullPointerException
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amit bhadre
Ranch Hand
Joined: Jan 23, 2006
Posts: 124
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How to Handle NullPointerException in JSP?
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Thanks advance who ever answers this question.
regards
amit bhadre
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Prabhu Venkatachalam
Ranch Hand
Joined: Nov 16, 2005
Posts: 502
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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>
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Prabhu Venkatachalam<br />SCJP 1.4,SCWCD 1.4<br />prabhu.venkatachalam@gmail.com
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Deepak Bala
Bartender
Joined: Feb 24, 2006
Posts: 6588
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If you think you can recover from the exception I would suggest a c : catch block. What part of your code throws this ?
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SCJP 6 articles - SCJP 5/6 mock exams - SCJP Mocks - SCJP 5 Mock exam (Word document ) - SCJP 5 Mock exam in Java.Inquisition format
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subject: NullPointerException
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