@Test public void test() throws Exception { OwlLoadConfiguration config = new OwlLoadConfiguration(); Neo4jConfiguration neo4jConfig = new Neo4jConfiguration(); neo4jConfig.setLocation(folder.getRoot().getAbsolutePath()); config.setGraphConfiguration(neo4jConfig); OntologySetup ontSetup = new OntologySetup(); ontSetup.setUrl("http://127.0.0.1:10000/main.owl"); config.getOntologies().add(ontSetup); BatchOwlLoader.load(config); GraphDatabaseService graphDb = new GraphDatabaseFactory().newEmbeddedDatabase(folder.getRoot().toString()); graphDb.beginTx(); GraphvizWriter writer = new GraphvizWriter(); Walker walker = Walker.fullGraph(graphDb); writer.emit(new File("/tmp/test.dot"), walker); }