Java Mail exception.

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alan_conoco@hotmail.co.uk - 13 Jun 2006 15:32 GMT

Hi,

i am new to javamail and am having problems getting a simple example
working.

the following snippet of code compiles ok....

MimeMessage msg = new MimeMessage(session);

.... but throws the exception printed below.

Exception in thread "main" java.lang.NoClassDefFoundError:
javax/activation/DataSource

i'm confused because i couldnt find any reference to a javax.activation
package in any docs.

any help appreciated!

Alan

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alan_conoco@hotmail.co.uk - 13 Jun 2006 15:58 GMT

problems solved!

Alan

> Hi,
>
[quoted text clipped - 16 lines]
>
> Alan

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Thomas Weidenfeller - 13 Jun 2006 15:59 GMT

> .... but throws the exception printed below.
>
[quoted text clipped - 3 lines]
> i'm confused because i couldnt find any reference to a javax.activation
> package in any docs.

Sure?

From the JavaMail NOTES.txt file:

> Your problem: javax.mail or javax.activation classes not found when compiling.
> Our response: You didn't set CLASSPATH correctly to find mail.jar and
> activation.jar. See README.txt.

From the JavaMail README.txt file:

> Requirements
> ------------
[quoted text clipped - 6 lines]
>
> and install it in a suitable location.

From the JavaMail product page
http://java.sun.com/products/javamail/index.jsp

> Note: You will also need the JavaBeans Activation Framework (JAF) extension that provides the javax.activation package. We suggest you use version 1.1 of JAF, the latest release.

So much for no references in any docs ...

Signature

The comp.lang.java.gui FAQ:
ftp://ftp.cs.uu.nl/pub/NEWS.ANSWERS/computer-lang/java/gui/faq
http://www.uni-giessen.de/faq/archiv/computer-lang.java.gui.faq/

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Java Mail exception.

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