public Target target() {
        if (serverHandler == null) {
            throw new IllegalStateException("No server handler registered");
        }
        return serverHandler.getTarget();
    }
Obtain the Target representing our end of the connection over
which this request was invoked. This method may only be invoked
during method handling (RPC server aspect).

@return Target representing our end of the connection over
which this request was invoked
@throws IllegalStateException if invoked inappropriately
jrt/src/com/yahoo/jrt/Request.java