Although the generated Java/Kotlin SDKs use reflection, they can be made usable in GraalVM by publishing them with reachability metadata. This can be enabled by setting targets.{java,kotlin}.publish.graalvm_metadata to true.

GraalVM should automatically detect and use the published metadata, but manual configuration is also available for end-users.

The generated Java/Kotlin SDKs can now include an automatically generated Spring Boot starter package to simplify configuration for users who use Spring Boot.

This can be enabled by setting targets.{java,kotlin}.publish.spring_boot_starter to true in the Stainless config.

The Java and Kotlin SDKs now support server variables in base URLs. If your OpenAPI spec includes templated URLs like https://{username}.example.com:{port}/{basePath}, the generated SDK will expose configuration options to fill in {username}, {port}, or {basePath}.

The Java/Kotlin SDKs now support configuring a query param as the discriminator for a method that supports both streaming and non-streaming.

When configured this way the HTTP method will result int two generated SDK methods. For example, an HTTP method called create will result in the following two SDK methods:

• create → doesn’t send the query param discriminator

• createStreaming → sends the query param discriminator set to true

To configure SSE streaming for your API, send us a note.