I am trying to sort on a column in GWT using their ListDataProvider Sorting example as a reference

<http://code.google.com/webtoolkit/doc/latest/DevGuideUiCellTable.html#columnSorting>

The problem is I can see my table column data is getting sorted (by using the debugger) but the table never gets refreshed. Looking at the example in the above link they do not explicitly refresh the display. Am I missing something here?

Thanks.