title: How to convert LocalDateTime to OffsetDateTime?
body: <p>How to convert <code>LocalDateTime</code> to <code>OffsetDateTime</code>?</p>
  <pre><code>private OffsetDateTime getEntryDate(Payment payment) {
      return Optional.ofNullable(payment)
                     .map(Payment::getEntryDate)
                     .map(SHOULD RETURN OffsetDateTime)
                     .orElse(null);
  }
  </code></pre>
  <p><code>Payment::getEntryDate</code> will return <code>LocalDateTime</code></p>