Bug 201236 Issue about Allow multiple and duplicate values in Layout preview[0705]
Description: Issue about Allow multiple and duplicate values in Layout preview Build number:2.2.1.v20070827 Steps to reproduce: 1. New sample data source and dataset from CUSTOMERS. 2. New a parameter p1, listbox, dynamic, value field COUNTRY, tick on allow duplicate value, tick on allow multiple values. 3. Insert a data item to Layout, set expression as var values=""; for (i=0;i<params["p1"].value.length;i++) values=values+params["p1"].value[i]+"."; values; 4. In Layout, click Preview and select France. Expected result: Display one France. Actual result: Display several France. I tried the same action but preview in Web viewer and extenal html, the result is only one France. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
throw new ViewerException(
						ResourceConstants.GENERAL_EXCEPTION_DOCUMENT_ACCESS_ERROR,
						new String[]{this.reportDocumentName} );
			}
		}
		else if ( isReportExist )
		{
			if ( isDocumentExist
					&& !ParameterAccessor.isValidFilePath( ParameterAccessor
							.getParameter( request,
									ParameterAccessor.PARAM_REPORT_DOCUMENT ) ) )
			{
				throw new ViewerException(
						ResourceConstants.GENERAL_EXCEPTION_DOCUMENT_ACCESS_ERROR,
						new String[]{this.reportDocumentName} );
			}
			
			reportDocumentInstance = ReportEngineService.getInstance( )
					.openReportDocument( this.reportDesignName,
							this.reportDocumentName, this.moduleOptions );
			if ( reportDocumentInstance != null )
			{
				reportRunnable = reportDocumentInstance.getReportRunnable( );
			}
			
			if ( reportRunnable == null )
			{
				
				if ( !ParameterAccessor
						.isValidFilePath( ParameterAccessor.getParameter(