@Override
    protected synchronized void processException(ReplyException ex) {
      logger.debug("IdentityUpdateResponse ignoring exception {}", ex.getMessage(), ex);
    }
The IdentityResponse processor ignores remote exceptions by implmenting this method. Ignoring
remote exceptions is acceptable since the response is only meant to wait for all healthy
recipients to receive their {@link IdentityUpdateMessage}
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/IdentityUpdateMessage.java