Hack to render contribution ids in for RAP UI Tests (Snippet from Widget.java)

gistfile1.java

public void setData( Object data ) {
    checkWidget();
    if( ( state & KEYED_DATA ) != 0 ) {
      ( ( Object[] )this.data )[ 0 ] = data;
    } else {
      this.data = data;
    }
    if( UITestUtil.isEnabled() && data != null ) {
      Class<? extends Object> clazz = data.getClass();
      while( clazz != Object.class ) {
        for( Class<?> type : clazz.getInterfaces() ) {
          if( type.getSimpleName().equals( "IContributionItem" ) ) {
            try {
              Method getter = clazz.getMethod( "getId", new Class<?>[]{} );
              String id = ( String )getter.invoke( data, new Object[]{} );
              handleCustomId( WidgetUtil.CUSTOM_WIDGET_ID, id );
            } catch( Exception e ) {
              e.printStackTrace();
            }
          }
        }
        clazz = clazz.getSuperclass();
      }
    }
  }