Ruby on rails for Gwt.
'com.arcbees.appengine:mail:1.2'
<dependency>
<groupId>com.arcbees.appengine</groupId>
<artifactId>mail</artifactId>
<version>1.2</version>
</dependency>
<dependency org="com.arcbees.appengine" name="mail" rev="1.2"/>
"com.arcbees.appengine", "mail", "1.2"