Bug 161223 gantt chart legend in swing is rendered incorrectly
Create a Gantt Chart with a thick line View it in the preview pane The legend is rendered with rounded corners. It should be rendered as a rectangle like in SWT.
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/swing/SwingRendererImpl.java
final int[][] i2a = getCoordinatesAsInts( la );
		Stroke sPrevious = null;
		final Stroke sCurrent = getCachedStroke( lia );
		if ( sCurrent != null ) 
		{
			sPrevious = _g2d.getStroke( );
			_g2d.setStroke( sCurrent );
		}
		_g2d.setColor( cFG );
		_g2d.draw( new Polygon( i2a[0], i2a[1], la.length ) );
		if ( sPrevious != null ) 
		{
			_g2d.setStroke( sPrevious );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.output.IPrimitiveRenderListener#fillPolygon(org.eclipse.birt.chart.output.PolygonRenderEvent)
	 */
	public void fillPolygon( PolygonRenderEvent pre ) throws ChartException
	{
		final Fill flBackground = validateMultipleFill( pre.getBackground( ) );
		if ( isFullTransparent( flBackground ) )
		{
			return;
		}
		final Location[] loa = pre.getPoints( );
		final int[][] i2a = getCoordinatesAsInts( loa );
		if ( flBackground instanceof ColorDefinition )