Bug 168304 Context root issue when set to other BIRT Web Project.[0603]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
page = pageNum.longValue( );
		try
		{
			ReportEngineService.getInstance( ).renderReport( out, request, doc,
					page, isMasterPage, isSvg, null, locale,
					isRtl.booleanValue( ), servletPath );
			doc.close( );
		}
		catch ( RemoteException e )
		{
			doc.close( );
			throw new ReportServiceException( e.getLocalizedMessage( ) );
		}
	}
	public void extractResultSet( String docName, String resultSetId,
			Collection columns, Set filters, InputOptions options,
			OutputStream out ) throws ReportServiceException
	{
		IReportDocument doc = ReportEngineService.getInstance( )
				.openReportDocument( getReportDesignName( options ), docName,
						getModuleOptions( options ) );
		Locale locale = (Locale) options.getOption( InputOptions.OPT_LOCALE );
		HttpServletRequest request = (HttpServletRequest) options
				.getOption( InputOptions.OPT_REQUEST );
		
		try
		{
			ReportEngineService.getInstance( ).extractData( doc, resultSetId,
					columns, locale, out,
					ParameterAccessor.getExportEncoding( request ) );