Exception while using JavaMail with Google AppEngine: How to fix this?

[Harini via StackOverflow]

I am trying to write a Java program using JavaMail to send an email between 2 users. I have NOT added mail.jar and activation.jar files to my appengine project as I read somewhere that this would cause exceptions to be thrown since the functionality is already available with the appengine .jar files. But my program is throwing the following exception:-

Exception in thread "main" com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'mail' or call 'Send()' was not found.
- Hide quoted text -
at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:95)
at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:48)
at com.google.appengine.api.mail.MailServiceImpl.doSend(MailServiceImpl.java:95)
at com.google.appengine.api.mail.MailServiceImpl.send(MailServiceImpl.java:32)
at com.google.appengine.api.mail.stdimpl.GMTransport.sendMessage(GMTransport.java:247)
at javax.mail.Transport.send(Transport.java:95)
at javax.mail.Transport.send(Transport.java:48)
at weatherForecast.SendEmail.main(SendEmail.java:40)

I read in the following post: http://forums.smartclient.com/showthread.php?t=8589 that I need to remove appengine .jar files from my project to make things work. But my web application also involves rendering a .jsp file populated with some data which is the welcoming page of my Google App when deployed on google appengine and the project fails to work once I remove the .jars. It does help me in getting rid of the exception though. Can anyone please suggest a way to write an email program and make it work on a google appengine project?

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http://stackoverflow.com/questions/3285405/exception-while-using-javamail-with-google-appengine-how-to-fix-this

[jumeno via StackOverflow]

If you use Flexible, Google does not support javax.mail in flex, which are designed to work only in the standard Java framework. Migration tips here.

Please DO NOT REPLY directly to this email but go to StackOverflow:

http://stackoverflow.com/questions/3285405/exception-while-using-javamail-with-google-appengine-how-to-fix-this/41087468#41087468

[jumeno via StackOverflow]

If you use Flexible, Google does not support javax.mail in the flex environment. Java Mail in GAE are seemed to be designed to work only in the standard Java framework on this Migration tips.. In flexible, three third party's mail API are introduced to be used instead. You may use GMail client API for another option.

[jumeno via StackOverflow]

If you use Flexible, this is because Google does not support Mail service in the flex environment. Java Mail with the built-in Mail service in GAE are seemed to be designed to work only in the standard Java framework on this Migration tips.. In flexible, three third party's mail API are introduced to be used instead. You may use GMail client API for another option.

[jumeno via StackOverflow]

If you use Flexible, this is because Google does not support Mail service in the flex environment. Java Mail with the built-in Mail service in GAE are seemed to be designed to work only in the standard Java framework on this Migration tips.. In flexible, three third party's mail API are introduced to be used instead. You may use GMail API for another option.