You might have to print the full stack of the NullPointerException to 
find out which class could be creating this exception.

-- padhu




Natarajan, Raj wrote:

>I have approx 25 applications deployed on a stand-alone Tomcat 4.0.4
>instance. These apps retrieve data from a DB2 database via jsp's using a set
>of custom tags. 
>
>I have had three instances so far since the apps went live on 8/28 when all
>the apps start returning a 500 Error with this message. 
>
>java.lang.NullPointerException
>        at java.lang.String.equals(String.java(Compiled Code))
>
>The only log entry I found is in the localhost_log.2002-09-19.txt
>
>StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
>java.lang.NullPointerException
>        at java.lang.String.equals(String.java(Compiled Code))
>
>Restarting Tomcat fixes the problem.
>
>I would greatly appreciate any pointers that would help me resolve this
>problem.
>
>Thanks
>Raj
>
>
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