// don't let the entries get GCed
      List<Entry<Object, Object>> unused = warmUp(cache);
      assertThat(cache.size()).isEqualTo(WARMUP_SIZE);
      assertMapSize(cache.asMap(), WARMUP_SIZE);
      checkValidState(cache);
    }
  }

  public void testContainsKey_found() {
    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed

  return request.build()
}

private fun Main.mediaType(): MediaType? {
  val mimeType =
    headers?.let {
      for (header in it) {
        val parts = header.split(':', limit = 2)
        if ("Content-Type".equals(parts[0], ignoreCase = true)) {
          return@let parts[1].trim()
        }
      }
      return@let null
    } ?: "application/x-www-form-urlencoded"

  return mimeType.toMediaTypeOrNull()
}

        buildReceiptString()
            ?.let(BuildReceipt::readBuildReceiptFromString)
            ?.let { buildReceipt ->
                buildReceipt["buildTimestamp"] as String
            }
    }

    override fun getDisplayName(): String =
        "the build timestamp extracted from the build receipt".let {
            when {

    Comparator<Iterable<String>> lexy = Comparators.lexicographical(comparator);

    ImmutableList<String> empty = ImmutableList.of();
    ImmutableList<String> a = ImmutableList.of("a");
    ImmutableList<String> aa = ImmutableList.of("a", "a");
    ImmutableList<String> ab = ImmutableList.of("a", "b");
    ImmutableList<String> b = ImmutableList.of("b");

    testComparator(lexy, empty, a, aa, ab, b);

    new EqualsTester()

        (save-excursion
          (let ((start (point)))
            (forward-line -1)
            (if (re-search-forward " \\\+$" start t) t nil))))

      (defun my/inside-java-lambda-p ()
        "Returns true if point is the first statement inside of a lambda"
        (save-excursion
          (c-beginning-of-statement-1)
          (let ((start (point)))
            (forward-line -1)

        ctClass.metadata
            ?.let { KotlinClassMetadata.readStrict(it) }
            ?.let { query(it) }
            ?: false

    private
    val CtClass.metadata: Metadata?
        get() = ctAnnotation<Metadata>()?.let { annotation ->
            Metadata(
                kind = annotation.getMemberValue("k")?.intValue ?: 1,

    const termynalActivateClass = "termy";
    let termynals = [];

    function createTermynals() {
        document
            .querySelectorAll(`.${termynalActivateClass} .highlight code`)
            .forEach(node => {
                const text = node.textContent;
                const lines = text.split("\n");
                const useLines = [];
                let buffer = [];
                function saveBuffer() {

boundaries = getBoundaries(\n    data.instance.popper,\n    data.instance.reference,\n    options.padding,\n    options.boundariesElement,\n    data.positionFixed\n  );\n\n  let placement = data.placement.split('-')[0];\n  let placementOpposite = getOppositePlacement(placement);\n  let variation = data.placement.split('-')[1] || '';\n\n  let flipOrder = [];\n\n  switch (options.behavior) {\n    case BEHAVIORS.FLIP:\n      flipOrder = [placement, placementOpposite];\n      break;\n    case BEHAVIORS.CLOCKWISE:\n...

            }
        }

    private
    fun apiSourceFileFor(member: JApiCompatibility): ApiSourceFile =
        member.jApiClass.let { declaringClass ->
            sources.sourceFileAndSourceRootFor(declaringClass.sourceFilePath).let { (sourceFile, sourceRoot) ->
                if (declaringClass.isKotlin) ApiSourceFile.Kotlin(sourceFile, sourceRoot)
                else ApiSourceFile.Java(sourceFile, sourceRoot)
            }
        }

Some of the options you could use as a TLS Termination Proxy are:

* Traefik (that can also handle certificate renewals)
* Caddy (that can also handle certificate renewals)
* Nginx
* HAProxy

## Let's Encrypt { #lets-encrypt }

Before Let's Encrypt, these **HTTPS certificates** were sold by trusted third parties.