Bug 175776 [smoke]Can not export data in Web viewer[02]
Description: No data is exported after export data from Web viewer Build number: 2.2.0.v20070228-0630 Steps to reproduce: 1, Drag a dataset into layout 2, Preview the report in Web Viewer 3, Click Export Data 4, Select the columns and click OK button 5, Open the exportdata.csv Expected result: The data of column are exported in the csv file Actual result: <html><head><title>Error</title><body><font color="red">java.lang.NullPointerException</font></body></html> in the csv file Error log:
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
this.parametersAsString = getParsedParametersAsStringWithDefaultValue(
				this.parametersAsString, parameterDefList, request, options );
	}
	/**
	 * Check whether show parameter page or not
	 * 
	 * @param request
	 * @return
	 */
	private boolean checkShowParameterPage( HttpServletRequest request )
	{
		if ( !ParameterAccessor.HEADER_REQUEST_TYPE_SOAP
				.equalsIgnoreCase( this.requestType )
				&& !IBirtConstants.SERVLET_PATH_DOWNLOAD
						.equalsIgnoreCase( request.getServletPath( ) ) )
		{
			String showParameterPage = ParameterAccessor
					.getShowParameterPage( request );
			if ( "false".equalsIgnoreCase( showParameterPage ) ) 
			{
				return false;
			}
			if ( "true".equalsIgnoreCase( showParameterPage ) ) 
			{
				return true;
			}
		}
		return this.missingParameter;
	}
	/**