title: how to solve an error:javax.mail does not exist?
body: <p>i copy mail.jar and activation.jar in bin folder of jdk 1.7  but still error javax.mail does not exist</p>
  
  <p>here is my code</p>
  
  <pre><code>import javax.mail.*;
  import javax.mail.internet.*;
  import javax.actiovation.*;
  </code></pre>