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From Marcel Stor <>
Subject JNI and Tomcat reload issue
Date Mon, 06 Oct 2003 09:07:48 GMT
Hi all,

After this has gotten on my nerves I can't hold up any longer...

My web app depends on a third party component that uses JNI. My
development env is Tomcat 4.1.18 with JRE 1.4.0_02 on XP.

The app runs without a flaw as long as I don't publish new servlets or
JSP and reload Tomcat. After reload I can't access the app anymore and
the third party component reports in stderr.log that it's DLL had
already been loaded by a different classloader:
(Compiled Code [0]) : Native Library C:\WINDOWS\system32\WFjniClient.dll
already loaded in another classloader
If Tomcat is stopped/restarted the error does NOT occur.
The component vendor has no clue as to what might cause this strange
behaviour nor do I.

Hope anyone can help me with this.

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