Hi,
I added three gauge/donut charts in a layout,for that charts I added chart click listener and also style(which forms border for that chart) to identify the selected chart.
If i apply the style to the chart it is repainting the chart(looking like refreshing).
same as remove style,if i remove the applied style from chart also it is repainting the chart.
Please look into this ticket.
http://dev.vaadin.com/ticket/14620