## Concepts

- If an object is under legal hold, it cannot be deleted unless the legal hold is explicitly removed for the respective version id. DeleteObjectVersion() would fail otherwise.
- In `Compliance` mode, objects cannot be deleted by anyone until retention period has expired for the given version id. If user has governance bypass permissions, an object's retention date can be extended in `Compliance` mode.

     * @param mirrorLayout The layouts supported by the mirror, may be {@code null}.
     * @return {@code true} if the layouts associated with the mirror match the layout of the original repository,
     *         {@code false} otherwise.
     */
    static boolean matchesLayout(String repoLayout, String mirrorLayout) {
        boolean result = false;

        // simple checks first to short circuit processing below.

					if asyncErr == nil {
						asyncErr = err
					}
					asyncErrMu.Unlock()
				}
			}(name, header.FileInfo(), b)
			continue
		}

		// If zero or earlier modtime, set to current.
		// Otherwise the resulting objects will be invalid.
		if header.ModTime.UnixNano() <= 0 {
			header.ModTime = time.Now()
		}

		// Sync upload.
		rc := disconnectReader{r: tarReader}

        return buffer.limit();
    }

    /**
     * Check if region has specific access permission
     *
     * @param access access permission to check
     * @return true if access is allowed, false otherwise
     */
    public boolean hasAccess(RdmaAccess access) {
        return accessFlags.contains(access);
    }

    /**
     * Check if memory region is still valid
     *

     * This includes all Windows variants (95, 98, ME, NT, 2000, XP, Vista, 7, 8, 10, 11).
     *
     * @return true if the current OS is any Windows variant, false otherwise
     */
    boolean isWindows();

    if (bits == 32) {
      return Murmur3_32HashFunction.GOOD_FAST_HASH_32;
    }
    if (bits <= 128) {
      return Murmur3_128HashFunction.GOOD_FAST_HASH_128;
    }

    // Otherwise, join together some 128-bit murmur3s
    int hashFunctionsNeeded = (bits + 127) / 128;
    HashFunction[] hashFunctions = new HashFunction[hashFunctionsNeeded];
    hashFunctions[0] = Murmur3_128HashFunction.GOOD_FAST_HASH_128;

              if (Thread.interrupted()) {
                removeWaiter(node);
                throw new InterruptedException();
              }

              // Otherwise re-read and check doneness. If we loop then it must have been a spurious
              // wakeup
              localValue = valueField;
              if (localValue != null & notInstanceOfDelegatingToFuture(localValue)) {

     * of differing characters.
     *
     * @param a first char array to compare
     * @param b second char array to compare
     * @return true if arrays are equal, false otherwise
     */
    private static boolean constantTimeEquals(char[] a, char[] b) {
        if (a == null && b == null) {
            return true;
        }
        if (a == null || b == null) {
            return false;

     */
    public void updateConfig() {
        isBind = false;
    }

    /**
     * Validates the LDAP connection.
     *
     * @return True if the LDAP connection is valid, otherwise false.
     */
    protected boolean validate() {
        if (!isBind) {
            if (fessConfig.getLdapAdminSecurityPrincipal() == null || fessConfig.getLdapAdminSecurityCredentials() == null) {

      static final int CANCELLED = 4;
      static final int INTERRUPTED = 8;

      private V value;
      private Throwable exception;

      /*
       * Acquisition succeeds if the future is done, otherwise it fails.
       */
      @Override
      protected int tryAcquireShared(int ignored) {
        if (isDone()) {
          return 1;
        }
        return -1;
      }

      /*