Bug 212478 Exception occurs when preview the table including a Autotext
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/data/dte/ReportQueryBuilder.java
context.addException( image.getHandle( ), ex );
				return null;
			}
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.engine.ir.ReportItemVisitor#visitLabelItem(org.eclipse.birt.report.engine.ir.LabelItemDesign)
		 */
		public Object visitLabelItem( LabelItemDesign label, Object value )
		{
			BaseQueryDefinition query;
			if ( label.useCachedResult( ) )
			{
				query = getRefenceQuery( label );
				if ( query == null )
				{
					registerUnresolvedQueryReference( label );
					return null;
				}
			}
			else
			{
				query = createQuery( label, value );
			}
			try
			{
				transformExpressions( label, query );
			}
			catch ( BirtException ex )