defer r.mutex.Unlock()

	if r.refs == 0 {
		return os.ErrInvalid
	}

	r.refs--
	if r.refs == 0 {
		err = r.File.Close()
	}

	return err
}

// Provides a new initialized read locked struct from *os.File
func newRLockedFile(lkFile *LockedFile) (*RLockedFile, error) {
	if lkFile == nil {
		return nil, os.ErrInvalid
	}

	return &RLockedFile{
		LockedFile: lkFile,
		refs:       1,
	}, nil

	if err != nil {
		return
	}
	err = en.WriteFloat64(z.Max.Count)
	if err != nil {
		err = msgp.WrapError(err, "Max", "Count")
		return
	}
	// write "Bytes"
	err = en.Append(0xa5, 0x42, 0x79, 0x74, 0x65, 0x73)
	if err != nil {
		return
	}
	err = en.WriteFloat64(z.Max.Bytes)
	if err != nil {
		err = msgp.WrapError(err, "Max", "Bytes")
		return
	}
	return
}

                new SimpleDateFormat(forSnapshotTimestamp ? DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT : DEFAULT_DATE_FORMAT);
        fmt.setCalendar(new GregorianCalendar());
        fmt.setTimeZone(timezone);
        return fmt.format(date);
    }

    private static Metadata createMetadataFromArtifact(Artifact artifact) {
        Metadata metadata = new Metadata();
        metadata.setArtifactId(artifact.getArtifactId());

    }

    /**
     * Returns a message code.
     *
     * @return message code
     */
    public String getMessageCode() {
        return messageCode;
    }

    /**
     * Returns arguments of a message
     *
     * @return array of arguments
     */
    public Object[] getArgs() {
        return args;
    }

    @Override
    public String getMessage() {

        return s -> {
            for (Function<String, String> function : functions) {
                String v = function.apply(s);
                if (v != null) {
                    return v;
                }
            }
            return null;
        };
    }

    @SafeVarargs

      return SECONDS;
    }
    if (MILLISECONDS.convert(nanos, NANOSECONDS) > 0) {
      return MILLISECONDS;
    }
    if (MICROSECONDS.convert(nanos, NANOSECONDS) > 0) {
      return MICROSECONDS;
    }
    return NANOSECONDS;
  }

  private static String abbreviate(TimeUnit unit) {
    switch (unit) {
      case NANOSECONDS:
        return "ns";
      case MICROSECONDS:
        return "\u03bcs"; // μs

    try {
      assertFalse("add(present) should return false or throw", collection.add(e0()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @CollectionFeature.Require(
      value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES},
      absent = RESTRICTS_ELEMENTS)
  public void testAdd_nullSupported() {
    assertTrue("add(null) should return true", collection.add(null));
    expectAdded((E) null);

    try {
      assertFalse("add(present) should return false or throw", collection.add(e0()));
    } catch (UnsupportedOperationException tolerated) {
    }
    expectUnchanged();
  }

  @CollectionFeature.Require(
      value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES},
      absent = RESTRICTS_ELEMENTS)
  public void testAdd_nullSupported() {
    assertTrue("add(null) should return true", collection.add(null));
    expectAdded((E) null);

     * returns.
     *
     * @param input The reader to deserialize the model from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.
     * @return The deserialized model, never {@code null}.
     * @throws IOException If the model could not be deserialized.

// SASLprep fails, the method returns an error.
func (x *XDGSCRAMClient) Begin(userName, password, authzID string) (err error) {
	x.Client, err = x.HashGeneratorFcn.NewClient(userName, password, authzID)
	if err != nil {
		return err
	}
	x.ClientConversation = x.Client.NewConversation()
	return nil
}

// Step takes a string provided from a server (or just an empty string for the