Bug 124444 Preview attached file in pdf will display nothing.
Description: Preview attached file in pdf will display nothing. Steps to reproduce: 1. Preview attached design file in pdf Expected result: Report content shows Actual result: Wait for 10 minutes but nothing showed at all
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ListItemExecutor.java
* 
	 * @see org.eclipse.birt.report.engine.executor.ListingElementExecutor#accessDetail(org.eclipse.birt.report.engine.ir.ListingDesign,
	 *      org.eclipse.birt.report.engine.emitter.IContentEmitter,
	 *      org.eclipse.birt.report.engine.api.script.ExpressionRow)
	 */
	protected void accessDetail( ListingDesign list, IContentEmitter emitter,
			IResultIterator rsIterator )
	{
		accessListBand( ( ( ListItemDesign ) list ).getDetail( ), emitter,
				rsIterator );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.executor.ListingElementExecutor#accessFooter(org.eclipse.birt.report.engine.ir.ListingDesign,
	 *      org.eclipse.birt.report.engine.emitter.IContentEmitter)
	 */
	protected void accessFooter( ListingDesign list, IContentEmitter emitter,
			IResultIterator rsIterator )
	{
		accessListBand( ( ( ListItemDesign ) list ).getFooter( ), emitter,
				rsIterator );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.executor.ListingElementExecutor#accessGroupFooter(org.eclipse.birt.report.engine.ir.ListingDesign,
	 *      int, org.eclipse.birt.report.engine.emitter.IContentEmitter)
	 */
	protected void accessGroupFooter( ListingDesign list, int index,