Bug 199009 [Automation][Regression] 2D percent stacked area chart did not render properly
steps to reproduce: - use the attached report design - preview in html expected behavior: - chart was renderred properly actual behavior: - it simply did not do so please refer to the attached screen captures
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/DeferredCacheManager.java
{
	
	private final IDeviceRenderer fDeviceRenderer;
	
	private final Chart fChart;
		
	private DeferredCache fFirstDC;
	
	private DeferredCache fLastDC;
	
	/**
	 * The single deferred cache object for some chart whose element must be put
	 * into a signle <code>DeferredCache</code> object.
	 * <p>
	 * Currently the stacked bar series, bubble seires and area series must be
	 * put into single cache.
	 */
	private DeferredCache fSingleDC;
	
	private final List fDeferredCacheList = new ArrayList( );
	/**
	 * Constructor of the class.
	 *