Re: NPE in Tree when I dont have any data

[bhorvat]

I guess it cant hurt to show you my root class just to see that I really am
not returning a null for the list 

public class AssetGroupRootValueWrapper implements ValueWrapper {

    private List<ValueWrapper> children;

    public AssetGroupRootValueWrapper(List<AssetGroup> assetGroups) {

        children = new LinkedList<ValueWrapper>();
        for (AssetGroup assetGroup : assetGroups) {
            children.add(new AssetGroupValueWrapper(assetGroup));
        }
    }

    @Override
    public boolean isLeaf() {
        return false;
    }

    @Override
    public boolean hasChildren() {
        return !getChildren().isEmpty();
    }

    @Override
    public List<ValueWrapper> getChildren() {
        return children;
    }

    @Override
    public String getLabel() {
        return "assets";
    }

    @Override
    public ValueWrapper seek(String clientValue) {
        if (clientValue.equals("assets")) {
            return this;
        }
        for (ValueWrapper assetValueWrapper : getChildren()) {
            ValueWrapper seek = assetValueWrapper.seek(clientValue);
            if (seek != null) {
                return seek;
            }
        }
        return null;
    }

    @Override
    public String getId() {
        return "assets";
    } 
}



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