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error pages in web.xml

 
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hi all:
I am trying to add error handling in my web.xml file.
here is the code:
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/errorPage.jsp</location>
</error-page>
It is not working correctly. It catchs Exceptions, but not RuntimeExceptions.
I had to add another code:
<error-page>
<exception-type>java.lang.RuntimeException</exception-type>
<location>/errorPage.jsp</location>
</error-page>
RuntimeExeption exteds Exception. Shouldn't be cought without adding the second code.
thanks
 
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RuntimeException, or a class derived from it, is different from other subclasses of Exception in that it is an UncheckedException.
 
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