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From Thufir <>
Subject instance has been stopped. could not load oracle.toplink.essentials...
Date Sun, 01 Mar 2009 06:17:16 GMT
I can't quite predict with certainty when this error will occur:

 86899	Feb 28, 2009 10:05:50 PM 
org.apache.catalina.loader.WebappClassLoader loadClass
 86900	INFO: Illegal access: this web application instance has been 
stopped already.  Could not load 
The eventual following stack trace is caused by an error thrown for 
debugging purposes as well as to attempt to terminate the thread which 
caused the illegal access, and has no functional impact.
 86901	java.lang.IllegalStateException

but generally restarting tomcat, and some combination of undeploy/
redeploy fixes the problem.  (I'm using NB 6.1, which automagically 
deploys the .war)  I'm not entirely whether undeploying the app does 
anything or not, I don't see why it would, but it seems to help.

>From what I've read the general solution is to just restart tomcat.  What 
does the error mean?

Also, just to clarify, if I'm using toplink for JPA then the toplink 
jars, and whatever I'm using for jdbc, need to be copied to tomcat as per:

(instead of derby I'm using mssql.jar)



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