Preconditions.checkArgument(transaction != null, "Transaction must not be null.");
Preconditions.checkArgument(cohorts != null, "Cohorts must not be null.");
LOG.debug("Tx: {} is submitted for execution.", transaction.getIdentifier());
Preconditions.checkArgument(transaction != null, "Transaction must not be null.");
Preconditions.checkArgument(cohorts != null, "Cohorts must not be null.");
LOG.debug("Tx: {} is submitted for execution.", transaction.getIdentifier());