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From "Martin Gainty" <mgai...@hotmail.com>
Subject Re: get a strange cast error with using the tomcat mail ressource
Date Mon, 12 Feb 2007 00:24:41 GMT
this is what I currently use in web.xml

/**********************************************/
  <resource-ref>
    <res-ref-name>MySession</res-ref-name>
    <res-type>javax.mail.Session</res-type>
    <res-auth>Container</res-auth>
  </resource-ref>

/************CODE***********/
import java.util.*;
import javax.mail.*;
import javax.naming.*;

    /**
     * Method used to login to the mail host.
     */
    public void login() throws Exception {
        url = new URLName(protocol, getHostname(), -1, mbox, 
                          getUsername(), getPassword());
 /*
  * First, try to get the session from JNDI,
  * as would be done under J2EE.
  */
 try {
     InitialContext ic = new InitialContext();
     Context ctx = (Context)ic.lookup("java:comp/env");
     session = (Session)ctx.lookup("MySession");
 } catch (Exception ex) {
     // ignore it
 }

 // if JNDI fails, try the old way that should work everywhere
 if (session == null) {
     Properties props = null;
     try {
  props = System.getProperties();
     } catch (SecurityException sex) {
  props = new Properties();
     }
     session = Session.getInstance(props, null);
 }
        store = session.getStore(url);
        store.connect();
        folder = store.getFolder(url);
        
        folder.open(Folder.READ_WRITE);
    }

(you will notice I didnt use lookup on 
mail/MonMail 
)

Martin--
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----- Original Message ----- 
From: "albrecht andrzejewski" <albrecht.andrzejewski@ema.fr>
To: <users@tomcat.apache.org>
Sent: Sunday, February 11, 2007 5:24 PM
Subject: get a strange cast error with using the tomcat mail ressource



Hello all,

I hope i will not pollute the list, but i'm affraid of being faced  
with a bug :-(

I have to send a mail with tomcat.
I followed the instructions of the tomcat documentation, corresponding  
my version (5.5).

Using this code:

  public static String sendMail(String destinataire, String login){

         Session session = null;
         try {
             Context initCtx = new InitialContext();
             Context envCtx = (Context) initCtx.lookup("java:comp/env");
line 36     session = (Session) envCtx.lookup("mail/MonMail");
             //session = envCtx.lookup("mail/MonMail");
         } catch (NamingException ex) {
               System.out.println("erreur au lookup");
            return ex.getMessage();
         }

I have the following error that i really dislike :

java.lang.ClassCastException: javax.mail.Session cannot be cast to  
javax.mail.Session
         at utils.MailHelper.sendMail(MailHelper.java:36)

I use the netbeans 5.5 bundled tomcat server (v 5.5.17) on the 1.6  
java version (but source level set to 1.5).

Do you think it's me ? Or a bug of the IDE ? or a bug of tomcat ?

I previously used this code with the same config in a successful way  
with another tomcat 5.5 server.

I'm getting crazy with this awful and strange cast error :-(
If only someone could help...

I join the web.xml tag:

<resource-ref>
         <description>
             Resource reference to a factory for javax.mail.Session
             instances that may be used for sending electronic mail
             messages, preconfigured to connect to the appropriate
             SMTP server.
         </description>
         <res-ref-name>mail/MonMail</res-ref-name>
         <res-type>javax.mail.Session</res-type>
         <res-auth>Container</res-auth>
     </resource-ref>

and my server.xml

  <Resource
       name="mail/MonMail"
       type="javax.mail.Session"
       mail.smtp.host="smtp.free.fr"/>

and my context.xml

  <Resource name="mail/MonMail" auth="Container"
             type="javax.mail.Session"
             mail.smtp.host="smtp.free.fr"/>

Hope to hear soon from the list about this problem :-(
Best regards.

----------------------------------------------------
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