97             AccessController.doPrivileged(
  98                     new PrivilegedExceptionAction<Boolean>() {
  99                         public Boolean run() throws InstanceNotFoundException {
 100                             return mbeanServer.isInstanceOf(name, broadcasterClass);
 101                         }
 102             });
 103             if (!instanceOf) {
 104                 throw new IllegalArgumentException("The specified MBean [" +
 105                     name + "] is not a " +
 106                     "NotificationBroadcaster " +
 107                     "object.");
 108             }
 109         } catch (PrivilegedActionException e) {
 110             throw (InstanceNotFoundException) extractException(e);
 111         }
 112 
 113         final Integer id = getListenerID();
 114 
 115         // 6238731: set the default domain if no domain is set.
 116         ObjectName nn = name;
 117         if (name.getDomain() == null || name.getDomain().equals("")) {
 118             try {
 119                 nn = ObjectName.getInstance(mbeanServer.getDefaultDomain(),
 120                                             name.getKeyPropertyList());
 121             } catch (MalformedObjectNameException mfoe) {
 122                 // impossible, but...
 123                 IOException ioe = new IOException(mfoe.getMessage());
 124                 ioe.initCause(mfoe);
 125                 throw ioe;
 126             }
 127         }
 128 
 129         synchronized (listenerMap) {
 130             IdAndFilter idaf = new IdAndFilter(id, filter);
 131             Set<IdAndFilter> set = listenerMap.get(nn);
 132             // Tread carefully because if set.size() == 1 it may be the
 133             // Collections.singleton we make here, which is unmodifiable.
 134             if (set == null)
 135                 set = Collections.singleton(idaf);
 136             else {
 137                 if (set.size() == 1)

  97             AccessController.doPrivileged(
  98                     new PrivilegedExceptionAction<Boolean>() {
  99                         public Boolean run() throws InstanceNotFoundException {
 100                             return mbeanServer.isInstanceOf(name, broadcasterClass);
 101                         }
 102             });
 103             if (!instanceOf) {
 104                 throw new IllegalArgumentException("The specified MBean [" +
 105                     name + "] is not a " +
 106                     "NotificationBroadcaster " +
 107                     "object.");
 108             }
 109         } catch (PrivilegedActionException e) {
 110             throw (InstanceNotFoundException) extractException(e);
 111         }
 112 
 113         final Integer id = getListenerID();
 114 
 115         // 6238731: set the default domain if no domain is set.
 116         ObjectName nn = name;
 117         if (name.getDomain() == null || name.getDomain().isEmpty()) {
 118             try {
 119                 nn = ObjectName.getInstance(mbeanServer.getDefaultDomain(),
 120                                             name.getKeyPropertyList());
 121             } catch (MalformedObjectNameException mfoe) {
 122                 // impossible, but...
 123                 IOException ioe = new IOException(mfoe.getMessage());
 124                 ioe.initCause(mfoe);
 125                 throw ioe;
 126             }
 127         }
 128 
 129         synchronized (listenerMap) {
 130             IdAndFilter idaf = new IdAndFilter(id, filter);
 131             Set<IdAndFilter> set = listenerMap.get(nn);
 132             // Tread carefully because if set.size() == 1 it may be the
 133             // Collections.singleton we make here, which is unmodifiable.
 134             if (set == null)
 135                 set = Collections.singleton(idaf);
 136             else {
 137                 if (set.size() == 1)