SYS_RENAMEAT                 = 501 // { int renameat(int oldfd, char *old, int newfd, char *new); }
	SYS_SYMLINKAT                = 502 // { int symlinkat(char *path1, int fd, char *path2); }
	SYS_UNLINKAT                 = 503 // { int unlinkat(int fd, char *path, int flag); }
	SYS_POSIX_OPENPT             = 504 // { int posix_openpt(int flags); }
	SYS_GSSD_SYSCALL             = 505 // { int gssd_syscall(char *path); }

	SYS_RENAMEAT                 = 501 // { int renameat(int oldfd, char *old, int newfd, char *new); }
	SYS_SYMLINKAT                = 502 // { int symlinkat(char *path1, int fd, char *path2); }
	SYS_UNLINKAT                 = 503 // { int unlinkat(int fd, char *path, int flag); }
	SYS_POSIX_OPENPT             = 504 // { int posix_openpt(int flags); }
	SYS_GSSD_SYSCALL             = 505 // { int gssd_syscall(char *path); }

    assertEquals(4, numberOrdering.binarySearch(ints, 7));
  }

  public void testSortedCopy() {
    List<@Nullable Integer> unsortedInts =
        Collections.unmodifiableList(Arrays.<@Nullable Integer>asList(5, 0, 3, null, 0, 9));
    List<@Nullable Integer> sortedInts = numberOrdering.nullsLast().sortedCopy(unsortedInts);
    assertEquals(Arrays.<@Nullable Integer>asList(0, 0, 3, 5, 9, null), sortedInts);

    assertEquals(

		// Wait for all requests to finish, which are bounded by the RequestTimeout variable.
		// once NonLongRunningRequestWaitGroup.Wait is invoked, the apiserver is
		// expected to reject any incoming request with a {503, Retry-After}
		// response via the WithWaitGroup filter. On the contrary, we observe
		// that incoming request(s) get a 'connection refused' error, this is
		// because, at this point, we have called 'Server.Shutdown' and

    behavior was deprecated with RFC 2818 in May 2000 and was recently dropped
    from major web browsers.
 *  New: Honor the `Retry-After` response header. HTTP 503 (Unavailable)
    responses are retried automatically if this header is present and its delay
    is 0 seconds. HTTP 408 (Client Timeout) responses are retried automatically
    if the header is absent or its delay is 0 seconds.

		loadUserCalled = true

		u, ok = sys.store.GetUser(accessKey)
	}

	if !ok && loadUserCalled && err != nil {
		iamLogOnceIf(ctx, err, accessKey)

		// return 503 to application
		return u, false, errIAMNotInitialized
	}

	return u, ok && u.Credentials.IsValid(), nil
}

// GetUser - get user credentials

	SYS_PTHREAD_COND_DESTROY            = 0x1F4 // 500
	SYS_PTHREAD_COND_SIGNAL             = 0x1F5 // 501
	SYS_PTHREAD_COND_BROADCAST          = 0x1F6 // 502
	SYS_PTHREAD_COND_WAIT               = 0x1F7 // 503
	SYS_PTHREAD_COND_TIMEDWAIT          = 0x1F8 // 504
	SYS_PTHREAD_CREATE                  = 0x1F9 // 505
	SYS_PTHREAD_DETACH                  = 0x1FA // 506
	SYS_PTHREAD_EQUAL                   = 0x1FB // 507

  %502 = "tf.Tile"(%359, %501) {device = ""} : (tensor<?x1xi64>, tensor<2xi32>) -> tensor<?x?xi64>
  %503 = "tf.Mul"(%500, %362) {device = ""} : (tensor<i32>, tensor<i32>) -> tensor<i32>
  %504 = "tf.Pack"(%503) {axis = 0 : i64, device = ""} : (tensor<i32>) -> tensor<1xi32>

    assertCached(false, 416)
    assertCached(false, 417)
    assertCached(false, 418)
    assertCached(false, 500)
    assertCached(true, 501)
    assertCached(false, 502)
    assertCached(false, 503)
    assertCached(false, 504)
    assertCached(false, 505)
    assertCached(false, 506)
  }

  @Test
  fun responseCachingWith1xxInformationalResponse() {
    assertSubsequentResponseCached(102, 200)

	// StatusReasonServiceUnavailable means that the request itself was valid,
	// but the requested service is unavailable at this time.
	// Retrying the request after some time might succeed.
	// Status code 503
	StatusReasonServiceUnavailable StatusReason = "ServiceUnavailable"
)

// StatusCause provides more information about an api.Status failure, including
// cases when multiple errors are encountered.