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From "Caldarale, Charles R" <>
Subject RE: Is ThreadLocal safe to use in servlets
Date Sun, 24 Jun 2007 16:11:57 GMT
> From: lightbulb432 [] 
> Subject: RE: Is ThreadLocal safe to use in servlets
> When might an advanced Tomcat user need to play with this 
> Executor element?

To conserve resources when multiple <Connector> elements are configured.
No point in having a multitude of idle threads when some <Connector>s
are only lightly used or the usage pattern varies with time.

> If the same class definition were in fact placed in the
> classpath of both applications, wouldn't this still not
> work though - because they'd be loaded by the web context-
> specific classloaders and therefore not be the "same" class?

Correct; "class definition" in the previous message meant the loaded
class file, which is qualified by the classloader used.  I should have
made that more clear.

> If that's the case, would it work if the class were 
> placed in the CATALINA_HOME/lib instead?

Yes, that's one place where the multiple webapps would be referencing an
indentical class definition.  Anything from the system or bootstrap
class loaders would also suffice.

 - Chuck

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