On Thu, Mar 04, 2010 at 06:26:50PM +0530, Chinmoy Chakraborty wrote:

> Actually I want to update the jar with the latest one inside 'lib'...and
> want to make our app hot-updatable. what would be a good idea for that?

Hello,

See: 

http://tomcat.apache.org/tomcat-5.5-doc/config/context.html 
 
in particular, the section on antiResourceLocking.  Note the caveats.

Otherwise, undeploy the app, update your jars, and redeploy.  

Thanks.

mp

> On Thu, Mar 4, 2010 at 5:23 PM, Pid <p...@pidster.com> wrote:
> 
> > On 04/03/2010 10:53, Chinmoy Chakraborty wrote:
> >
> >> Hi All,
> >>
> >> Is it possible to delete a jar file from ../WEB-INF/lib when Tomcat is
> >> running? I tried to delete the jar from 'lib' after putting following
> >> entry
> >> in catalina.policy:
> >>
> >
> > It might be possible, but it would be a *very* bad idea.
> >
> >
> >  grant codeBase "file:${catalina.home}/webapps/abcd/WEB-INF/lib" {
> >> permission java.io.FilePermission "read, write, delete";
> >> };
> >>
> >> but it was giving following error:
> >>
> >>  java.io.FileNotFoundException:
> >> C:\AppServer\Tomcat\apache-tomcat-6.0.10\webapps\
> >> abcd\WEB-INF\lib (Access is denied)...
> >>
> >
> > Guess not then.
> >
> > Is it smart for the application to try and delete it's own jar files?
> >
> >
> > p
> >
> >
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-- 
Michael Powe            mich...@trollope.org            Naugatuck CT USA

 Any fool can paint a picture, but it takes a wise person to be able to
 sell it.

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