@Override
	void toHtml() throws IOException {
		writeHtmlHeader();
		htmlCoreReport.toHtml();
		writeHtmlFooter();
	}
@Test
	public void testWithCollectorServer() throws IOException {
		final CollectorServer collectorServer = new CollectorServer();
		try {
			final HtmlReport htmlReport = new HtmlReport(collector, collectorServer,
					javaInformationsList, Period.TOUT, writer);
			htmlReport.toHtml(null, null);
			assertNotEmptyAndClear(writer);

			Utils.setProperty(Parameters.PARAMETER_SYSTEM_PREFIX + "mockLabradorRetriever", "true");
			collectorServer.collectWithoutErrors();
			htmlReport.toHtml(null, null);
			assertNotEmptyAndClear(writer);
		} finally {
			collectorServer.stop();
		}
	}