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.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/TaskSelectData.java
List dataList = getDataServiceProvider( ).getPreviewData( );
				for ( Iterator iterator = dataList.iterator( ); iterator.hasNext( ); )
				{
					String[] dataRow = (String[]) iterator.next( );
					for ( int i = 0; i < dataRow.length; i++ )
					{
						tablePreview.addEntry( dataRow[i], i );
					}
				}
			}
		}
		catch ( ChartException e )
		{
			ChartWizard.displayException( e );
		}
	}
	private void createPreviewPainter( )
	{
		previewPainter = new ChartPreviewPainter( (ChartWizardContext) getContext( ) );
		previewCanvas.addPaintListener( previewPainter );
		previewCanvas.addControlListener( previewPainter );
		previewPainter.setPreview( previewCanvas );
	}
	protected Chart getChartModel( )
	{
		if ( getContext( ) == null )
		{
			return null;
		}