for (Map.Entry<String, Map<String,String>> entry : getAvailableGraphs(client).entrySet()) {
//create a session
final SessionRequestMessage outMsg = new SessionRequestMessage();
outMsg.setRequestAsUUID(UUID.randomUUID());
outMsg.metaSetGraphName(entry.getKey());
outMsg.metaSetGraphObjName("graph");
RexProMessage inMsg = client.execute(outMsg);
Assert.assertNotNull(inMsg.Session);
Assert.assertTrue(inMsg instanceof SessionResponseMessage);