Bug 140620 Chart scripting errors are ignored
Write a chart with an invalid script, the execution simply ignores the script. This makes it difficult to debug scripting. The error message is also not precise and needs improvements.
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/swing/SwingRendererImpl.java
private final LinkedHashMap _lhmAllTriggers = new LinkedHashMap( );
	private final Hashtable _htLineStyles = new Hashtable( );
	protected Graphics2D _g2d;
	protected IDisplayServer _ids;
	private IUpdateNotifier _iun = null;
	private SwingEventHandler _eh = null;
	private static ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.device.extension/swing" ); 
	/**
	 * The constructor.
	 */
	public SwingRendererImpl( )
	{
		final PluginSettings ps = PluginSettings.instance( );
		try
		{
			_ids = ps.getDisplayServer( "ds.SWING" ); 
		}
		catch ( ChartException pex )
		{
			logger.log( pex );
		}
	}
	/**
	 * Free all allocated system resources.
	 */
	public void dispose( )
	{
		_lhmAllTriggers.clear( );
		if ( _iun != null )
		{