Bug 138552 [Smoke][Regression]The web viewer can not work
Description: The web viewer can not work Steps to reproduce: 1. new a report 2. new a label and input something in the label 3. save and preview with the web viewer Actual result: Nothing is displayed.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
Object paramValueObj = super
				.getParamValueObject( request, parameterObj );
		if ( paramValueObj != null )
			return paramValueObj;
		
		
		IReportRunnable runnable;
		try
		{
			runnable = ReportEngineService.getInstance( ).openReportDesign(
					reportDesignName );
		}
		catch ( EngineException e )
		{
			throw new ReportServiceException( e.getLocalizedMessage( ) );
		}
		Map configMap = runnable.getTestConfig( );
		if ( ParameterAccessor.isDesigner( request )
				&& configMap.containsKey( paramName ) )
		{
			
			String configValue = ( String ) configMap.get( paramName );
			ReportParameterConverter cfgConverter = new ReportParameterConverter(
					format, Locale.US );
			return cfgConverter
					.parse( configValue, parameterObj.getDataType( ) );
		} else
			return super.getParamValueObject( request, parameterObj );
	}
}