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