Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Support for java.util.Optional

See original GitHub issue

Usually, when I use Gson, I need to add special logic so that a field of Optional<X> gets serialized as X if it’s present, and gets omitted if it’s empty; and conversely on deserialization. This seems like the only reasonable way to handle Optional. Would you consider offering this feature (or accepting a PR that implements it)?

Issue Analytics

State:
Created 6 years ago
Reactions:10
Comments:11 (1 by maintainers)

Top GitHub Comments

20reactions

JakeWhartoncommented, Jun 14, 2017

Gson can’t depend on Java 8 types as it supports down to Java 6.

6reactions

piegamesdecommented, Jul 10, 2021

@kaqqao gson-java8-datatype worked great, but sadly it broke with Java 16 and isn’t maintained anymore (the linked repository is archived).

Gson can’t depend on Java 8 types as it supports down to Java 6.

Java 6 as reached end of life 8(!) years ago, and Java 8 (and thus, Optional) exist for 7 years now. I think it’s about time to move on.

Top Results From Across the Web

Optional (Java Platform SE 8 ) - Oracle Help Center

This is a value-based class; use of identity-sensitive operations (including reference equality ( == ), identity hash code, or synchronization) on instances of ......

Guide To Java 8 Optional | Baeldung

In this tutorial, we're going to show the Optional class that was introduced in Java 8. The purpose of the class is to...

Java 8 Optional Class - GeeksforGeeks

util package. It can help in writing a neat code without using too many null checks. By using Optional, we can specify alternate...

Java 8 - Optional Class - Tutorialspoint

Optional object is used to represent null with absent value. This class has various utility methods to facilitate code to handle values as...

Understanding, Accepting and Leveraging Optional in Java

Optional is a simple yet very significant addition in Java 8. See examples of how it can be useful both on its own,...