```Python hl_lines="6"
{!../../docs_src/events/tutorial002.py!}
```

Aqui, a função de manipulação de evento `shutdown` irá escrever uma linha de texto `"Application shutdown"` no arquivo `log.txt`.

/// info | "Informação"

Na função `open()`, o `mode="a"` significa "acrescentar", então, a linha irá ser adicionada depois de qualquer coisa que esteja naquele arquivo, sem sobrescrever o conteúdo anterior.

        context.logger = (level, message, error) -> l.atLevel(org.slf4j.event.Level.valueOf(level.name()))
                .setCause(error)
                .log(message);

        return container;
    }

    protected Set<String> collectExportedArtifacts(
            CoreExtensionEntry coreEntry, List<CoreExtensionEntry> extensionEntries) {

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="log"/>
        <jsp:param name="menuType" value="failureUrl"/>
    </jsp:include>
    <div class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">

<div class="wrapper">
    <jsp:include page="/WEB-INF/view/common/admin/header.jsp"></jsp:include>
    <jsp:include page="/WEB-INF/view/common/admin/sidebar.jsp">
        <jsp:param name="menuCategoryType" value="log"/>
        <jsp:param name="menuType" value="maintenance"/>
    </jsp:include>
    <div class="content-wrapper">
        <div class="content-header">
            <div class="container-fluid">

     *
     * @return an {@link Optional} containing the file path, or empty if not set
     */
    @Nonnull
    Optional<String> altInstallationToolchains();

    /**
     * Returns the path to the log file.
     *
     * @return an {@link Optional} containing the file path, or empty if not set
     */
    @Nonnull
    Optional<String> logFile();

    /**

            cmdAndArguments.add(mavenOptions.altInstallationToolchains().get());
        }
        if (mavenOptions.logFile().isPresent()) {
            cmdAndArguments.add("--log-file");
            cmdAndArguments.add(mavenOptions.logFile().get());
        }
        if (mavenOptions.color().isPresent()) {
            cmdAndArguments.add("--color");

			// to create the appropriate stack.
			versionsSorter(fivs.Versions).reverse()

			var decommissioned, expired int
			for _, version := range fivs.Versions {
				stopFn := globalDecommissionMetrics.log(decomMetricDecommissionObject, idx, bi.Name, version.Name, version.VersionID)
				// Apply lifecycle rules on the objects that are expired.
				if filterLifecycle(bi.Name, version.Name, version) {
					expired++

        localhostIpv6,
      )

    client =
      clientTestRule.newClientBuilder()
        .eventListenerFactory(clientTestRule.wrap(listener))
        .connectTimeout(60, TimeUnit.SECONDS) // Deliberately exacerbate slow fallbacks.
        .dns { dnsResults }
        .fastFallback(true)
        .build()
    url =
      serverIpv4.url("/")
        .newBuilder()
        .host("localhost")
        .build()
  }

So we have a dedicated thread for every socket that just reads frames and dispatches them.

The reader thread must never run application-layer code. Otherwise one slow stream can hold up the entire connection.

        blocker = (Blocker) state;
      }
      spinCount++;
      if (spinCount > MAX_BUSY_WAIT_SPINS) {
        /*
         * If we have spun a lot, just park ourselves. This will save CPU while we wait for a slow
         * interrupting thread. In theory, interruptTask() should be very fast, but due to
         * InterruptibleChannel and JavaLangAccess.blockedOn(Thread, Interruptible), it isn't