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
{
			private final CCombo ccombo;
			public ProxyOfCCombo( CCombo ccombo )
			{
				this.ccombo = ccombo;
			}
			@Override
			public void add( String string )
			{
				ccombo.add( string );
			}
			@Override
			public String[] getItems( )
			{
				return ccombo.getItems( );
			}
			@Override
			public void removeAll( )
			{
				ccombo.removeAll( );
			}
			@Override
			public void setItem( int index, String string )
			{
				ccombo.setItem( index, string );
			}
			@Override
			public void setItems( String[] items )
			{