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
/**
	 * Clear all <code>DeferredCache</code> instances.
	 */
	public void clearDC( )
	{
		fDeferredCacheList.clear( );
		fFirstDC = null;
		fLastDC = null;
		fSingleDC = null;
	}
	/**
	 * Returns first <code>DeferredCache</code> instance.
	 * 
	 * @return first <code>DeferredCache</code> instance.
	 */
	public DeferredCache getFirstDeferredCache( )
	{
		return fFirstDC;
	}
	/**
	 * Returns last <code>DeferredCache</code> instance.
	 * 
	 * @return last <code>DeferredCache</code> instance.
	 */
	public DeferredCache getLastDeferredCache( )
	{
		return fLastDC;
	}
}