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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: HTTP Status 500 - Error instantiating servlet class org.apache.jsp.index_jsp
Date Wed, 13 Aug 2014 03:50:49 GMT
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Dennis,

On 8/12/14, 5:52 PM, Dennis Longnecker wrote:
> Migrating from Tomcat 5.5.4 to Tomcat 8.0.9.

I'm glad to see that someone running 5.5.x is actually upgrading. We
certainly want to help you :)

You'll get there: follow Mark E's advice to start from scratch and see
what happens.

If you still get that error, you might want to check to see if you
have pre-compiled some JSP files and put them directly into your web
application. If you've done that, you will need to discard the
precompiled JSPs and re-compile them with the new JSP precompiler:
precompiling JSPs requires that you re-precompile the JSP files every
time you change the Tomcat version -- even a minor patch release, just
to be sure.

The compiled JSPs use internal APIs that can change without notice for
any version.

- -chris
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