Re: no RadioButtonCell in GWT 2.4 Cell?

I don't know how to use a CheckboxCell coupled with a SingleSelectionModel.
CheckboxCell selected = new CheckboxCell();
Column<Log, Boolean> chkColumn = new Column<Log, Boolean>(selected){
   public Boolean getValue(Log log){
        return log.getSelected();
   }
};

table.addColumn(chkColumn, "selected");
final SingleSelectionModel<Log> singleSelectionModel = new SingleSelectionModel<Log>();
table.setSelectionModel(singleSelectionModel);

but when I run the program, I found that if I click on a row, the row get focus first, then I need a second mouse click to cause to checkbox checked, then if I click the checkbox in another row, that row get selected but the checkbox of that row is not checked and I need to click the checkbox once again to selected it.

why will this happen?

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