Bug 152554 ReportServiceException is thrown out in PDF when preview attached design file
ReportServiceException is thrown out in PDF when preview attached design file, this exception doesn't occur in WebViewer/HTML. Error log: org.eclipse.birt.report.service.api.ReportServiceException: Error happened while running the report
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFLayoutManagerFactory.java
}
		public Object visitList( IListContent list, Object value )
		{
			return new PDFListLM( context, parent, list, executor );
		}
		public Object visitListBand( IListBandContent listBand, Object value )
		{
			assert ( false );
			return null;
			
			
		}
		public Object visitListGroup( IListGroupContent group, Object value )
		{
			return new PDFListGroupLM( context, parent, group, 
					executor );
		}
		public Object visitTableGroup( ITableGroupContent group, Object value )
		{
			return new PDFTableGroupLM( context, parent, group, 
					executor );
		}
		public Object visitGroup( IGroupContent group, Object value )
		{
			return new PDFListGroupLM( context, parent, group, 
					executor );
		}
	}
}