Bug 417305 A sample chart has no data
chart/org.eclipse.birt.chart.examples/src/org/eclipse/birt/chart/examples/view/models/WorkingWithBIRTDataEngine.java
{
	private final Map<String, String> expressionMap = new HashMap<String, String>();
	
	/**
	 * Create runtime chart model and bind data.
	 * 
	 * @throws ChartException
	 */
	public static final Chart createWorkingWithBIRTDataEngine( )
			throws ChartException
	{
		WorkingWithBIRTDataEngine wwbde = new WorkingWithBIRTDataEngine();
		String[] expressions = new String[2];