EObjectNode eon = (EObjectNode)selected;
Object o = eon.readOnly(new IUnitOfWork.Void<EObject>() {
    @Override
    public void process(EObject state) throws Exception {
        // TODO Auto-generated method stub
						
        }
    });			

{
    ...
    EObjectNode eon = (EObjectNode)selected;

    eon.readOnly(new IUnitOfWork.Void<EObject>() {
        @Override
         public void process(EObject state) throws Exception {
            setModelObject(state);
        }
    });
                
    return getModelObject();
}
    
EObject modelObject= null;
public void setModelObject(EObject eo)
{
    modelObject= eo;
}
public void getModelObject()
{
    return modelObject;
}