Mail Session ClassCastException

[Carlos Bracho <ca...@gmail.com>]

Hello everybody.

I am trying to get a mail session using the context's lookup method and I 
get a ClassCastException.

this is the resource declaration in my context.xml:

<Resource name="mail/sessionMail" auth="Container" type="javax.mail.Session" 
mail.smtp.host="localhost"/>

the code I am using to lookup the resource is:

Context initialContext = new InitialContext();
Object objeto = initialContext.lookup("java:comp/env/mail/sessionMail");
String clase = objeto.getClass().getName();
if(objeto instanceof javax.mail.Session)
{
this.session = (javax.mail.Session) objeto;
}

when I debug that code I see the "clase" variable has "javax.mail.Session" 
as value but the if test does not pass

Can anybody help men??

thanks

-- 
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Carlos J, Bracho M. 
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e-mail: carlos.bracho@gmail.com
MSN: cbrachomi@hotmail.com
+58 416 409 21 75 
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Re: Mail Session ClassCastException

[Carlos Bracho <ca...@gmail.com>]

Thanks Dirk, you were right, I had the jar files in common/lib and also in 
the web-inf/lib

Thanks again

On 6/29/05, Dirk Weigenand <Di...@gmx.de> wrote:
> 
> Hi Carlos,
> 
> > --- Ursprüngliche Nachricht ---
> > Von: Carlos Bracho <ca...@gmail.com>
> > An: tomcat-user@jakarta.apache.org
> > Betreff: Mail Session ClassCastException
> > Datum: Tue, 28 Jun 2005 10:08:28 -0400
> >
> > Hello everybody.
> >
> > I am trying to get a mail session using the context's lookup method and 
> I
> > get a ClassCastException.
> >
> > this is the resource declaration in my context.xml:
> >
> > <Resource name="mail/sessionMail" auth="Container"
> > type="javax.mail.Session"
> > mail.smtp.host="localhost"/>
> >
> > the code I am using to lookup the resource is:
> >
> > Context initialContext = new InitialContext();
> > Object objeto = initialContext.lookup("java:comp/env/mail/sessionMail");
> > String clase = objeto.getClass().getName();
> > if(objeto instanceof javax.mail.Session)
> > {
> > this.session = (javax.mail.Session) objeto;
> > }
> >
> > when I debug that code I see the "clase" variable has "
> javax.mail.Session"
> > as value but the if test does not pass
> >
> 
> I think your code is correct. What you are running into here is a case of
> loading classes via different class loaders. Check that your tomcat
> installation and your webapp do not both contain mail.jar. The bean 
> factory
> which provides your javax.mail.Session loads the class probably from the
> common/lib/mail.jar and your webapp gets this class from its
> WEB-INF/lib/mail.jar so they are both instances of javax.mail.Session but
> since loaded via different class loaders not really the same classes.
> 
> > Can anybody help men??
> 
> Regards,
> Dirk
> 
> --
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> 



-- 
------------------------------------------------------------------
Carlos J, Bracho M. 
------------------------------------------------------------------
e-mail: carlos.bracho@gmail.com
MSN: cbrachomi@hotmail.com
+58 416 409 21 75 
------------------------------------------------------------------