Hamlets

Servlets are a key component of server-side Java™ development, but despite a number of attractive traits, servlets do not support or enforce the separation of content and presentation. To master that functionality, Hamlets -- servlet extensions that provide this functionality within a lightweight framework implemented with less than 500 lines of Java source code ... Read the full article: http://www-128.ibm.com/developerworks/web/library/wa-hamlets/