gwt - ui:with, style not showing up -

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i share css across multiple widgets using .

i can see css class name obfuscated class definition not showing when inspect element in firefox / chrome. here're codes. can suggest missing? thanks.

style.css 

.namespan {  color: #3e6d8e; background-color: #e0eaf1;}

resources.java 

public interface resources extends clientbundle {    @source("style.css")    style style();    public interface style extends cssresource {      string namespan();    }  }

uibinder.ui.xml 

<ui:uibinder xmlns:ui='urn:ui:com.google.gwt.uibinder'      xmlns:g='urn:import:com.google.gwt.user.client.ui'>    <ui:with field='res' type='com.my.app.widgets.logoname.resources'/>    <g:htmlpanel>        <div>          hello there          <g:inlinelabel ui:field='namespan' stylename="res.style.namespan">kevin</g:inlinelabel>       </div>    </g:htmlpanel>  </ui:uibinder>

uibinder.class 

public class uibinder extends composite {          private static uibinderuibinder uibinder =     gwt.create(uibinderuibinder.class);          interface uibinderuibinder extends uibinder<widget, uibinder> {}          @uifield(provided = true)  final resources res;  // style doesn't show no matter provided=true declared or not.          public uibinder(resources res) {                  res = gwt.create(resources.class);                  initwidget(uibinder.createandbindui(this));          }

you have use res.style().ensureinjected()


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