Bug 312761 It makes no difference changing the series labels position in Radar chart.[13]
chart/org.eclipse.birt.chart.ui/src/org/eclipse/birt/chart/ui/util/ChartUIUtil.java
{
				combo.setItems( items );
			}
			@Override
			public void setText( String string )
			{
				combo.setText( string );
			}
			@Override
			public String getText( )
			{
				return combo.getText( );
			}
			@Override
			public Object getData( String key )
			{
				return combo.getData( key );
			}
			@Override
			public void setData( String key, Object value )
			{
				combo.setData( key, value );
			}
			@Override
			public int getSelectionIndex( )
			{
				return combo.getSelectionIndex( );
			}
		}
		static class ProxyOfCCombo extends ComboProxy