Am 6. August 2015 06:12:14 MESZ, schrieb Tim Gustafson <t...@tgustafson.com>:
>I'm trying to configure an e-mail session in my Tomcat configuration
>like this:
>
><Resource name="mail/session"
> auth="Container"
> type="javax.mail.Session"
> mail.transport.protocol="smtp"
> mail.smtp.host="192.168.0.2"
> mail.debug="true" />
>
>From my web application, I'm instantiating a Session object like this:
>
>Context initialContext = new InitialContext();
>session = (Session)
>initialContext.lookup("java:comp/env/mail/session");
>
>When I go to send e-mail from my web applet, I'm getting:
>
>java.lang.ClassNotFoundException: javax.mail.Authenticator
>
>I find that error a little odd, as I'm not doing SMTP AUTH anywhere,
>but I'll let that go for now. Based on documentation I found while
>Googling that error message, I copied the mail.jar file from my
>Netbeans library into Tomcat's lib folder, and now I get:
>
>java.lang.ClassCastException: javax.mail.Session cannot be cast to
>javax.mail.Session
This error indicates that you have mail.jar in two different classloaders.
Probably common loader and webapp loader. The one in tomcats lib folder -
common loader - is the right one.
>
>Removing Java Mail from my Netbeans project does not appear to be an
>option as it will refuse to compile the project without it.
I don't use netbeans, so I can't help you there. You could look for tutorials
about database drivers, they will probably be handled the same way.
Sorry,
Felix
>
>I'm at a loss. What am I doing wrong? Thanks in advance for any help
>with this - it has been driving me nuts for a while now!
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