I read on the internet that in order to use java mail jar i should disable google app engine mail.
I did it by removing in from the libraries in the java build path tab (I'm using eclipse), and from the google menu : I removed the V from "use google app engine" checkbox.
but I still see in the log :
DEBUG: loading new provider protocol=gm, className=com.google.appengine.api.mail.stdimpl.GMTransport, vendor=null, version=null
Starting Jetty on port 8888
maybe this is the reason for the exception? how come it looks on appengine class if I removed it from classpath?
Joined: May 08, 2012
I found I still had the appengine jars in my war/WEB-INF/LIB.
I removed it and now I get following exception :
subject: GWT RPC mail error:javax.mail.NoSuchProviderException: Unable to locate provider for protocol: smtp