4.3.3 Deprecations and breaking changes

Vert.x Web GraphQL

Platform locale used as default

• https://github.com/vert-x3/vertx-web/pull/2244

As a consequence of upgrading to GraphQL-Java 19, the GraphQL engine now uses the JVM default Locale if the user does not provide one.

For most projects, this shouldn't be an issue. Otherwise, you should configure the JVM default Locale or provide one in the Vert.x GraphQL handler setup.

It is also still possible to use GraphQL-Java 18 with this version of Vert.x