public Target connect(Spec spec) {
        return transport.connect(this, spec, null);
    }
Connects to the given address. The new {@link Target} will be
associated with this Supervisor.

@return Target representing our end of the connection
@param spec where to connect
@see #connect(com.yahoo.jrt.Spec, java.lang.Object)
jrt/src/com/yahoo/jrt/Supervisor.java