LivenessStateChange livenessChange = new LivenessStateChange(
machine, previousState, newState);
LOG.info("liveness state change: " + livenessChange);
Alert alert = livenessChange.toAlert();
if (livenessTestResult.getError().isPresent()) {
alert = alert.withTag("commandError", livenessTestResult
.getError().get().getMessage());
}
if (livenessTestResult.getCommandResult().isPresent()) {
SshCommandResult command = livenessTestResult
.getCommandResult().get();