public static void removeDnsCache(String host){
  try {
    InetAddressCacheUtil.removeInetAddressCache(host);
  }
 catch (  Exception e) {
    final String message=String.format("Fail to removeDnsCache for host %s, cause: %s",host,e.toString());
    throw new DnsCacheManipulatorException(message,e);
  }
}

public static void removeDnsCache ( String host ) { try { InetAddressCacheUtil . removeInetAddressCache ( host ) ; } catch ( Exception e ) { final String message = String . format ( "Fail to removeDnsCache for host %s, cause: %s" , host , e . toString ( ) ) ; throw new DnsCacheManipulatorException ( message , e ) ; } }
remove dns cache entry , cause lookup dns server for host after .
