how to instantiate a uib class in junit?

I've done this successfully using gwt-uibinder-mock but it no longer works in gwt 2.4.   

Does anyone know of a simple way to structure a uib class to avoid the following error when running in junit?

java.lang.ExceptionInInitializerError

at com.netuitive.gwt.portal.client.portal.PortalUIB$$FastClassByGuice$$504f2a91.newInstance(<generated>)

at com.google.inject.internal.cglib.reflect.$FastConstructor.newInstance(FastConstructor.java:40)

at com.google.inject.internal.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:60)

..

Caused by: java.lang.UnsupportedOperationException: ERROR: GWT.create() is only usable in client code!  It cannot be called, for example, from server code.  If you are running a unit test, check that your test case extends GWTTestCase and that GWT.create() is not called from within an initializer or constructor.

at com.google.gwt.core.client.GWT.create(GWT.java:92)

at com.google.gwt.user.client.ui.UIObject.<clinit>(UIObject.java:188)

... 39 more

Here is how I structire the UIB class now:

public class TheUIB  extends Composite  {

    interface MyUiBinder extends UiBinder<Widget, TheUIB  > {}

    private static MyUiBinder uiBinder = GWT.create(MyUiBinder.class);

  

    public TheUIB()  {

        super();

        initWidget(uiBinder.createAndBindUi(this));

    }

thanks,

David

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