form = new Form<OSGiSubsystem>(OSGiSubsystem.class);
form.setNumColumns(1);
CheckBoxItem activationMode = new CheckBoxItem("lazyActivation", Console.CONSTANTS.common_label_lazyActivation());
activationMode.asWidget().addHandler(new ValueChangeHandler<Boolean>() {
@Override
public void onValueChange(ValueChangeEvent<Boolean> event) {
presenter.onActivationChange(event.getValue());
}
}, ValueChangeEvent.getType());