Tenants tenants = keystone.tenants().list().execute();
//try to exchange token using the first tenant
if(tenants.getList().size() > 0) {
access = keystone.tokens().authenticate(new TokenAuthentication(access.getToken().getId()))
.withTenantId(tenants.getList().get(0).getId())
.execute();
//NovaClient novaClient = new NovaClient(KeystoneUtils.findEndpointURL(access.getServiceCatalog(), "compute", null, "public"), access.getToken().getId());
Nova novaClient = new Nova(ExamplesConfiguration.NOVA_ENDPOINT.concat("/").concat(tenants.getList().get(0).getId()));