Sommer is a very simple library for mapping Plain Old Java Objects (POJOs) to RDF graphs and back. Sommer stands for "Semantic Object (Metadata) MappeR".
T. Wright, and A. Cockburn. AUIC '05: Proceedings of the Sixth Australasian conference on User interface, page 55--62. Darlinghurst, Australia, Australia, Australian Computer Society, Inc., (2005)