private boolean useDNS(String name,boolean defaultValue){
  Boolean value=getBooleanObject("libdefaults",name);
  if (value != null) {
    return value.booleanValue();
  }
  value=getBooleanObject("libdefaults","dns_fallback");
  if (value != null) {
    return value.booleanValue();
  }
  return defaultValue;
}

private boolean useDNS ( String name , boolean defaultValue ) { Boolean value = getBooleanObject ( "libdefaults" , name ) ; if ( value != null ) { return value . booleanValue ( ) ; } value = getBooleanObject ( "libdefaults" , "dns_fallback" ) ; if ( value != null ) { return value . booleanValue ( ) ; } return defaultValue ; }
check if need to use dns to locate kerberos services
