This document compares several Java tools for processing Resource Description Framework (RDF) data: METAmorphoses, Jena, and JRDF. It evaluates each tool based on how it stores RDF triples, whether it supports the SPARQL query language, how well it is documented for developers, and its licensing. METAmorphoses transforms data between relational databases and RDF XML, Jena stores triples in memory and supports SPARQL with ARQ, and JRDF stores triples as Java objects and provides a GUI for SPARQL queries.