Introducing Hamlets
http://www-128.ibm.com/developerworks/java/library/wa-hamlets/

Pawlitzek, Rene
IBM
2005

Abstract:

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, Rene Pawlitzek proposes Hamlets -- servlet extensions that provide this functionality within a lightweight framework implemented with less than 500 lines of Java source code.