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
{
					RuleDesign rule = maps.getRule( i );
					if ( rule != null )
					{
						if ( rule.ifValueIsList( ) )
						{
							expressions.add( expressionUtil
									.createConditionExpression( rule
											.getTestExpression( ), rule
											.getOperator( ), rule
											.getValue1List( ) ) );
						}
						else
						{
							expressions.add( expressionUtil
									.createConditionalExpression( rule
											.getTestExpression( ), rule
											.getOperator( ), rule.getValue1( ),
											rule.getValue2( ) ) );
						}
					}
				}
			}
			VisibilityDesign visibilities = item.getVisibility( );
			if ( visibilities != null )
			{
				for ( int i = 0; i < visibilities.count( ); i++ )
				{
					expressions
							.add( visibilities.getRule( i ).getExpression( ) );