I'm using primefaces 6.0 line chart component, which is based on **jqPlot**. In my charts I have **null** values, which I need because I'm making use of the `breakOnNull` plotting option, so the curves have breaks on the null points, but unfortunately the null "points" are being shown as string (see screenshot).[![enter image description here](https://i.stack.imgur.com/uAmx8.png)](https://i.stack.imgur.com/uAmx8.png) 

So far I have tried to solve this setting the `hideZeros: true` option - no success. I also tried a simple custom `pointLabels` renderer:

```
this.cfg.seriesDefaults.pointLabels =
{
    show: true, 
    location: 's',
    formatString: '%.1f',
    formatter: function(format, val){ 
         console.log(val);
         return (val== null?"":val);}
}

```

but this doesn't work either since the `null` values are not being passed to it all, which I can not understand.

Any help will be appreciated.