* @param registry The cluster which was removed
* @throws IOException If any exception occurs while sending the message over the channel
*/
private void sendClusterRemovedMessage(final Registry<String, List<ClientMapping>> registry) throws IOException {
final DataOutputStream outputStream;
final MessageOutputStream messageOutputStream;
try {
messageOutputStream = channelAssociation.acquireChannelMessageOutputStream();
} catch (Exception e) {
throw EjbMessages.MESSAGES.failedToOpenMessageOutputStream(e);
}