Why did you write a new cucumber reporter?
There where limitations in the way that the existing support for Cucumber was handled that was suboptimal.
There is nothing wrong with the cucumber jvm reports plugin and they can be used in tandem - however that plugin doesn't offer the normal jenkins testresult interfaces. Namely there is no trend reports or test history. There is also no API that you can integrate with.
Likewise you could output junit xml style reports from cucumber - but this also has limitations. Namely the output is less than stellar, you have no view of tags or the nice goodness that the previous mentioned plugin provides.
This plugin solves both of these issues so you only need one place to look.