// Sign given request using Signature V4.
func signStreamingRequest(req *http.Request, accessKey, secretKey string, currTime time.Time) (string, error) {
	// Get hashed payload.
	hashedPayload := req.Header.Get("x-amz-content-sha256")
	if hashedPayload == "" {
		return "", fmt.Errorf("Invalid hashed payload")
	}

	// Set x-amz-date.
	req.Header.Set("x-amz-date", currTime.Format(iso8601Format))

	// Get header map.

    protected Set<Integer> highlightTerminalCharSet = new HashSet<>();

    /** Action hook for custom processing */
    protected ActionHook actionHook = new ActionHook();

    /** Set of MIME types that should be displayed inline */
    protected final Set<String> inlineMimeTypeSet = new HashSet<>();

    /** Cache for facet responses */
    protected Cache<String, FacetResponse> facetCache;

## Version 3.14.4

_2019-09-29_

 *  Fix: Cancel calls that fail due to unexpected exceptions. We had a bug where an enqueued call
    would never call back if it crashed with an unchecked throwable, such as a
    `NullPointerException` or `OutOfMemoryError`. We now call `Callback.onFailure()` with an
    `IOException` that reports the call as canceled. The triggering exception is still delivered to

    }
  }

  /**
   * On a concurrent computation that returns null, all threads should get an
   * InvalidCacheLoadException, with the loader only called once. The result should not be cached (a
   * later request should call the loader again).
   */
  private static void testConcurrentLoadingNull(CacheBuilder<Object, Object> builder)
      throws InterruptedException {

    int count = 10;

    }
  }

  /**
   * On a concurrent computation that returns null, all threads should get an
   * InvalidCacheLoadException, with the loader only called once. The result should not be cached (a
   * later request should call the loader again).
   */
  private static void testConcurrentLoadingNull(CacheBuilder<Object, Object> builder)
      throws InterruptedException {

    int count = 10;

    protected static final int CONTEXT_TRUNCATION_BUFFER = 100;

    /** The HTTP client used for API communication. */
    protected CloseableHttpClient httpClient;

    /** Cached availability status of the LLM provider. */
    protected volatile Boolean cachedAvailability = null;

    /** The scheduled task for periodic availability checks. */
    protected TimeoutTask availabilityCheckTask;

            }
            return new Pair<>(StringUtil.EMPTY_STRINGS, StringUtil.EMPTY_STRINGS);
        }
        // Check if cached
        final Pair<String[], String[]> cachedResult = groupCache.getIfPresent(id);
        if (cachedResult != null) {
            if (logger.isDebugEnabled()) {

                putCache(request.getModelCache(), groupId, artifactId, version, ModelCacheTag.RAW, parentData);
            } else {
                /*
                 * NOTE: This is a sanity check of the cache hit. If the cached parent POM was locally resolved, the
                 * child's <relativePath> should point at that parent, too. If it doesn't, we ignore the cache and

        assertTrue(id1.length() > 0);
        assertFalse(id1.contains("-"));
    }

    @Test
    public void test_generateId_format() {
        String id = queryHelper.generateId();
        // UUID without dashes should be 32 characters
        assertEquals(32, id.length());
        assertTrue(id.matches("[a-f0-9]{32}"));
    }

    @Test
    public void test_addDefaultSort_singleField() {

      listOf(
        Header(Header.TARGET_METHOD, "GET"),
        Header(Header.TARGET_SCHEME, "https"),
        Header(Header.TARGET_AUTHORITY, "squareup.com"),
        Header(Header.TARGET_PATH, "/cached"),
      )
    peer.sendFrame().pushPromise(3, 2, expectedRequestHeaders)
    val expectedResponseHeaders =
      listOf(
        Header(Header.RESPONSE_STATUS, "200"),
      )