/usr/ngasi/apiclient/bin/ncli.sh -user=primarynode -password=coolgeek -url=http://localhost:8666 -command=sync -overwrite=true

Properties properties = new Properties();

properties.put("url","http://localhost:8666");

properties.put("user","myuser");

properties.put("password","coolgeek");

properties.put("command","sync");

properties.put("overwrite","true");

String result = NGAPIClient.exec(properties);