@Override
    public void releaseReader() {
        tunnel.releaseReader();
    }
Wraps the given tunnel such that all function calls against this tunnel
will be delegated to it.

@param tunnel
    The GuacamoleTunnel to wrap.
guacamole-common/src/main/java/org/apache/guacamole/net/DelegatingGuacamoleTunnel.java