public void initFromSystemProperty() {
		String hostPair = System.getProperty("ngrinder.etc.hosts");
		if (!DnsUtils.isEmpty(hostPair)) {
			String[] hostPairs = hostPair.split(",");
			for (String pair : hostPairs) {
				String[] each = pair.split(":");
				if (each.length != 2 || DnsUtils.isEmpty(each[0]) || DnsUtils.isEmpty(each[1])) {
					continue;
				}
				singleton.put(each[0].trim(), each[1].trim());
			}
		}
	}
Initialize NameStore based on the ngrinder.etc.hosts system properties.
ngrinder-runtime/src/main/java/org/ngrinder/dns/NameStore.java