ResourceBundle.getBundle( Messages.ENGINE, Locale.getDefault( ) ) );
ResourceBundle.getBundle( Messages.ENGINE ) );
	protected final boolean validateLineAttributes( Object oSource,			LineAttributes lia ) throws ChartException	{		if ( !lia.isSetStyle( ) || !lia.isSetThickness( ) )		{			return false; // NO LINE STYLE = DON'T DRAW LINE		}		if ( !lia.isSetVisible( ) )		{			throw new ChartException( ChartEnginePlugin.ID,					ChartException.RENDERING,					"exception.unset.line.visibility", //$NON-NLS-1$ 					new Object[]{						oSource					},					ResourceBundle.getBundle( Messages.ENGINE,							Locale.getDefault( ) ) );		}		if ( !lia.isVisible( ) )		{			return false;		}		return true;	}