Bug 200812 Issue when remove one separator setting in viewer.property[0002]
Description: Issue when remove one separator setting in viewer.property Build number:2.2.1.v200708220927 Steps to reproduce: 1. Deploy birt. 2. Open viewer.properties under WEB-INF folder. 3. Delete "viewer.sep.0=," line 4. Start server. 5. Preview report. 6. Export Data, select columns and select "Comma(,)", click OK. Expected result: Comma(,) isn't in the separator list. Actual result: Nothing happened after step6 and no error logs. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
/**
	 * Check whether report parameter exists in the url.
	 * 
	 * @param request
	 *            http request
	 * @param name
	 *            parameter name
	 * @return whether report parameter exists in the url
	 */
	public static boolean isReportParameterExist( HttpServletRequest request,
			String name )
	{
		assert request != null && name != null;
		boolean isExist = false;
		Map paramMap = request.getParameterMap( );
		String ISOName = toISOString( name );
		if ( paramMap != null && paramMap.containsKey( ISOName ) )
		{
			isExist = true;
		}
		Set nullParams = getParameterValues( request, PARAM_ISNULL );
		if ( nullParams != null && nullParams.contains( name ) )
		{
			isExist = true;
		}
		return isExist;
	}
	/**
	 * If set isWorkingFolderAccessOnly as true, check the file if exist in
	 * working folder.