*
     * @deprecated Use {@link #MavenBuildTimestamp(Date, Map)} or extract the format and pass it
     *             to {@link #MavenBuildTimestamp(Date, String)} instead.
     */
    @Deprecated
    public MavenBuildTimestamp(Date time, Properties properties) {
        this(time, properties != null ? properties.getProperty(BUILD_TIMESTAMP_FORMAT_PROPERTY) : null);
    }

    public MavenBuildTimestamp(Date time, String timestampFormat) {

        Map<String, String> interpolationProperties = new HashMap<>();
        interpolationProperties.put("maven.build.timestamp.format", "yyyyMMdd'T'HHmm'Z'");
        MavenBuildTimestamp timestamp = new MavenBuildTimestamp(new Date(), interpolationProperties);
        String formattedTimestamp = timestamp.formattedTimestamp();

    }

    @Override
    public Object getValue(String expression) {
        if ("build.timestamp".equals(expression) || "maven.build.timestamp".equals(expression)) {
            return new MavenBuildTimestamp(startTime, properties).formattedTimestamp();
        }
        return null;
    }