* referencing the type variables seem worthwhile.
   */
  final void checkNoDuplicate(R rowKey, C columnKey, @Nullable V existingValue, V newValue) {
    checkArgument(
        existingValue == null,
        "Duplicate key: (row=%s, column=%s), values: [%s, %s].",
        rowKey,
        columnKey,
        newValue,
        existingValue);
  }

  // redeclare to satisfy our test for b/310253115
  @Override

    /**
     * Function code to enumerate volume shadow copy snapshots
     */
    public static final int FSCTL_SRV_ENUMERATE_SNAPSHOTS = 0x00144064;
    /**
     * Function code to request a resume key for server-side copy
     */
    public static final int FSCTL_SRV_REQUEST_RESUME_KEY = 0x00140078;
    /**
     * Function code to read hash data from server
     */

    }

    private byte[] calculateBindingInfo(ChannelInfo channel) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        try {
            // Combine session key with channel-specific data
            byte[] sessionKey = getSessionKey();
            if (sessionKey != null) {
                baos.write(sessionKey);
            }

        NullPointerException.class,
        () -> ImmutableBiMap.ofEntries((Entry<Integer, Integer>) nullValue));
  }

  private static <T extends @Nullable Object> Entry<T, T> entry(T key, T value) {
    return new AbstractMap.SimpleImmutableEntry<>(key, value);
  }

  public void testCopyOfEmptyMap() {
    ImmutableBiMap<String, Integer> copy =
        ImmutableBiMap.copyOf(Collections.<String, Integer>emptyMap());

controller & Replicaset**: the DELETE request of a replication controller or a replicaset becomes asynchronous by default. The object will continue to exist in the key-value store for some time. The API server will set its metadata.deletionTimestamp, add the "orphan" finalizer to its metadata.finalizers. The object will be deleted from the key-value store after the garbage collector orphans its dependents. Please refer to this [user-guide](http://kubernetes.io/docs/user-guide/garbage-collector/) for more...

  integrity sha512-AVbw3UJ2e9bq64vSaS9Am0fje1Pa8pbGqTTsmXfaIiMpnr5DlDhfJOuLj9Sf95ZPVDAUerDfEk88MPmPe7UCQg==

path-key@^3.1.0:
  version "3.1.1"
  resolved "https://registry.yarnpkg.com/path-key/-/path-key-3.1.1.tgz#581f6ade658cbba65a0d3380de7753295054f375"
  integrity sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==

path-parse@^1.0.7:

            return null;
        }

        @Override
        public Object setUserData(String key, Object data, org.w3c.dom.UserDataHandler handler) {
            return null;
        }

        @Override
        public Object getUserData(String key) {
            return null;
        }

        @Override
        public void setNodeValue(String nodeValue) {

            affinityKey = smb2Request.getTreeId();
        }

        if (affinityKey != 0) {
            // Select channel based on affinity key
            List<ChannelInfo> list = new ArrayList<>(channels);
            int index = Math.abs((int) (affinityKey % list.size()));
            return list.get(index);
        }

		if ev.S3.Bucket.Name != "" && bucketName != "" {
			if ev.S3.Bucket.Name != bucketName {
				return false
			}
		}
		return rulesMap.MatchSimple(ev.EventName, ev.S3.Object.Key)
	})
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}
	if bucketName != "" {
		values.Set(peerRESTListenBucket, bucketName)
	}
	for _, peer := range peers {

    * Normally, a token is set to expire after some time.
        * So, the user will have to log in again at some point later.
        * And if the token is stolen, the risk is less. It is not like a permanent key that will work forever (in most of the cases).
* The frontend stores that token temporarily somewhere.
* The user clicks in the frontend to go to another section of the frontend web app.