Update Java Example

[sdavids]

Please do not make Java look bad by using outdated code snippets, thanks.

https://www.flipt.io/#w-tabs-2-data-w-pane-4

FliptEvaluationClient fliptClient = FliptEvaluationClient.builder()
                    .build();

Map<String, String> context = new HashMap<>();
context.put("platform", "web");

Result<VariantEvaluationResponse> result =
    fliptClient.evaluateVariant("ui-color", "user-123", context);

⇓

var client = FliptEvaluationClient.builder().build();

var response = client.evaluateVariant("ui-color", "user-123", Map.of("platform", "web"));

This is Java 9 from 7 years ago.

The current supported Java versions are Java 11, 17, 21.

[GeorgeMac]

Hey @sdavids, thanks for bringing this to our attention! We're just a small team of maintainers and we're not very experienced in Java as we don't use it in our day to day. So we're very dependent on experts like yourself to help keep us up to date with current best practices.

Would you be open to contributing this update as a PR?

[GeorgeMac]

My mistake, I see you're referring to our marketing site! We will get that updated on our end, thank you again!

[markphelps]

FIxed, thanks @sdavids !!