OptionGroup - setPropertyDataSource -com.vaadin.data.util.converter.Convert

Hi ,

When a radio button is selected , i get the following error. The values for the Radio button are 01,02 and description can be abc , def.

When the dependent componets are not listning on the radio button , and we click on button the values are bound correctly.

Apr 21, 2016 1:00:04 PM com.vaadin.server.DefaultErrorHandler doDefault
SEVERE: 
com.vaadin.data.util.converter.Converter$ConversionException: Unable to convert value of type java.lang.String to presentation type class java.lang.Boolean. No converter is set and the types are not compatible.
    at com.vaadin.data.util.converter.ConverterUtil.convertFromModel(ConverterUtil.java:116)
    at com.vaadin.ui.AbstractField.convertFromModel(AbstractField.java:736)
    at com.vaadin.ui.AbstractField.convertFromModel(AbstractField.java:721)
    at com.vaadin.ui.AbstractField.readValueFromProperty(AbstractField.java:1315)
    at com.vaadin.ui.AbstractField.valueChange(AbstractField.java:1308)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
    at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198)
    at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
    at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1008)
    at com.vaadin.ui.AbstractField.fireValueChange(AbstractField.java:1159)
    at com.vaadin.ui.AbstractField.setValue(AbstractField.java:570)
    at com.vaadin.ui.AbstractSelect.setValue(AbstractSelect.java:732)
    at com.vaadin.ui.AbstractField.setValue(AbstractField.java:468)
    at com.vaadin.ui.OptionGroup.setValue(OptionGroup.java:193)
    at com.vaadin.ui.AbstractSelect.changeVariables(AbstractSelect.java:541)
    at com.vaadin.ui.OptionGroup.changeVariables(OptionGroup.java:86)
    

public class QuestionnaireRadioGroup extends OptionGroup implements BaseUIComponent {
    private com.lean.lpres.widget.questionnaire.QuestionnaireListBox widgetModel;

    private IndexedValueCollection valColl;

    public QuestionnaireRadioGroup(QuestionnaireWidgetModel box) {
        this.widgetModel = (com.lean.lpres.widget.questionnaire.QuestionnaireRadioGroup) box;

    }

    @Override
    public List<Component> getWidget(Object... str) {
        valColl = (IndexedValueCollection) str[0];
        List<Component> searchList = new ArrayList<Component>();
        //setId(widgetModel.getId());
        try {
            List<QuestionnaireListBoxEntry> dataList = widgetModel.getChildList();
            for (QuestionnaireListBoxEntry next : dataList ) {

                addItem(next.getCode());

                setItemCaption(next.getCode(), next.getDisplayText());

            }
        } catch (Exception ignore) {

        }

        setImmediate(true);
        setNullSelectionAllowed(false);
        
        refreshFromModel();
        
        setRequiredError("MSG_VALUE_REQUIRED");

        addValueChangeListener(event -> refreshFromModel());
        IndexedValueCollectionProperty newDataSource = new IndexedValueCollectionProperty(valColl, widgetModel.getIExprValue());
        setPropertyDataSource(newDataSource);
        
        searchList.add(this);
        
        

        return searchList;
    }

    @Override
    public void refreshFromModel() {
        // logger.logDebug("refershFromModel");
        setCaption(valColl.getString(widgetModel.getIExprLabel()));
        setRequired(valColl.getBoolean(widgetModel.getIExprRequired()));
        setVisible(valColl.getBoolean(widgetModel.getIExprApplicable()));

    }

}

public class IndexedValueCollectionProperty extends AbstractProperty<Object> {
    private IndexedValueCollection valColl;

    private int position = -1;

    public IndexedValueCollectionProperty(IndexedValueCollection valColl, int position) {
        super();
        this.valColl = valColl;
        this.position = position;
    }

    @Override
    public Object getValue() {
        if (valColl == null) {
            return null;
        }

        // logger.logDebug("getValue valColl.getValue(" + position + ") " + valColl.getValue(position));
        return valColl.getObject(position);
    }

    @Override
    public void setValue(Object newValue) throws ReadOnlyException {
        if (valColl == null) {
            return;
        }

        valColl.getNode(position).set(newValue);

        fireValueChange();
    }

    @Override
    public Class<? extends Object> getType() {
        return Object.class;
    }

}