log
.info("Username already exist, removing previous password");
Model revokeModel = ModelFactory.createDefaultModel();
revokeModel.add(user
.listProperties(ACCOUNTMANAGER.passwordSha1));
revokeModel.add(user.listProperties(FOAF.mbox_sha1sum));
revokeModel.add(user
.listProperties(ACCOUNTMANAGER.userName));
revokeGraphTmp = new FCAGraphImpl(revokeModel);
// store.revokeGraph(identity, new
// FCAGraphImpl(revokeModel), now);