@JsonIgnore
	public List<String> getTargetHostIP() {
		List<String> targetIPList = new ArrayList<>();
		String[] hostsList = StringUtils.split(StringUtils.trimToEmpty(targetHosts), ",");
		for (String hosts : hostsList) {
			String[] addresses = StringUtils.split(hosts, ":");
			if (addresses.length <= 2) {
				targetIPList.add(addresses[addresses.length - 1]);
			} else {
				targetIPList.add(hosts.substring(hosts.indexOf(":") + 1));
			}
		}
		return targetIPList;
	}
Get ip address of target hosts. if target hosts 'a.com:1.1.1.1' add ip: '1.1.1.1' if target
hosts ':1.1.1.1' add ip: '1.1.1.1' if target hosts '1.1.1.1' add ip: '1.1.1.1'
if www.test.com:0:0:0:0:0:ffff:3d87:a969 add ip: '0:0:0:0:0:ffff:3d87:a969'

@return host ip list
ngrinder-core/src/main/java/org/ngrinder/model/PerfTest.java