277                         throw new IOException("Unable to map index to interface");
 278                     return (T) ni;
 279                 }
 280             }
 281 
 282             if (name == StandardSocketOptions.SO_REUSEADDR &&
 283                     reuseAddressEmulated)
 284             {
 285                 return (T)Boolean.valueOf(isReuseAddress);
 286             }
 287 
 288             // no special handling
 289             return (T) Net.getSocketOption(fd, Net.UNSPEC, name);
 290         }
 291     }
 292 
 293     private static class DefaultOptionsHolder {
 294         static final Set<SocketOption<?>> defaultOptions = defaultOptions();
 295 
 296         private static Set<SocketOption<?>> defaultOptions() {
 297             HashSet<SocketOption<?>> set = new HashSet<SocketOption<?>>(8);
 298             set.add(StandardSocketOptions.SO_SNDBUF);
 299             set.add(StandardSocketOptions.SO_RCVBUF);
 300             set.add(StandardSocketOptions.SO_REUSEADDR);
 301             set.add(StandardSocketOptions.SO_BROADCAST);
 302             set.add(StandardSocketOptions.IP_TOS);
 303             set.add(StandardSocketOptions.IP_MULTICAST_IF);
 304             set.add(StandardSocketOptions.IP_MULTICAST_TTL);
 305             set.add(StandardSocketOptions.IP_MULTICAST_LOOP);
 306             if (ExtendedOptionsImpl.flowSupported()) {
 307                 set.add(jdk.net.ExtendedSocketOptions.SO_FLOW_SLA);
 308             }
 309             return Collections.unmodifiableSet(set);
 310         }
 311     }
 312 
 313     @Override
 314     public final Set<SocketOption<?>> supportedOptions() {
 315         return DefaultOptionsHolder.defaultOptions;
 316     }
 317 

 277                         throw new IOException("Unable to map index to interface");
 278                     return (T) ni;
 279                 }
 280             }
 281 
 282             if (name == StandardSocketOptions.SO_REUSEADDR &&
 283                     reuseAddressEmulated)
 284             {
 285                 return (T)Boolean.valueOf(isReuseAddress);
 286             }
 287 
 288             // no special handling
 289             return (T) Net.getSocketOption(fd, Net.UNSPEC, name);
 290         }
 291     }
 292 
 293     private static class DefaultOptionsHolder {
 294         static final Set<SocketOption<?>> defaultOptions = defaultOptions();
 295 
 296         private static Set<SocketOption<?>> defaultOptions() {
 297             HashSet<SocketOption<?>> set = new HashSet<>(8);
 298             set.add(StandardSocketOptions.SO_SNDBUF);
 299             set.add(StandardSocketOptions.SO_RCVBUF);
 300             set.add(StandardSocketOptions.SO_REUSEADDR);
 301             set.add(StandardSocketOptions.SO_BROADCAST);
 302             set.add(StandardSocketOptions.IP_TOS);
 303             set.add(StandardSocketOptions.IP_MULTICAST_IF);
 304             set.add(StandardSocketOptions.IP_MULTICAST_TTL);
 305             set.add(StandardSocketOptions.IP_MULTICAST_LOOP);
 306             if (ExtendedOptionsImpl.flowSupported()) {
 307                 set.add(jdk.net.ExtendedSocketOptions.SO_FLOW_SLA);
 308             }
 309             return Collections.unmodifiableSet(set);
 310         }
 311     }
 312 
 313     @Override
 314     public final Set<SocketOption<?>> supportedOptions() {
 315         return DefaultOptionsHolder.defaultOptions;
 316     }
 317