Hi,
There is no gwt wrapper for the candlestick chart yet, but you can
write your own:
http://code.google.com/p/gwt-google-apis/wiki/VisualizationNewWrapper
I think it should also be possible to directly use the Google Chart
Tools using JSNI but I haven't tried that.
By the way, the lastest version is 1.1.2 but I leave it as an exercise
for the reader to find it.
- Ronald