Bug 199640 view in PDF error
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTableGroupLM.java
{
		if ( keepWithCache.isEmpty( ) )
		{
			return;
		}
		Iterator iter = keepWithCache.getChildren( );
		while ( iter.hasNext( ) )
		{
			ContainerArea container = (ContainerArea) iter.next( );
			skip( container );
		}
	}
	protected void skip( ContainerArea area )
	{
		if ( area instanceof RowArea )
		{
			tableLM.skipRow( (RowArea) area );
		}
		else
		{
			Iterator iter = area.getChildren( );
			while ( iter.hasNext( ) )
			{
				ContainerArea container = (ContainerArea) iter.next( );
				skip( container );
			}
		}
	}
}