registry.register(BuildModelAction.class, new BuildModelActionSerializer());
        registry.register(ClientProvidedBuildAction.class, new ClientProvidedBuildActionSerializer());
        registry.register(ClientProvidedPhasedAction.class, new ClientProvidedPhasedActionSerializer());
        registry.register(TestExecutionRequestAction.class, new TestExecutionRequestActionSerializer());

Class <org.gradle.tooling.internal.provider.action.BuildActionSerializer$ClientProvidedBuildActionSerializer> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (BuildActionSerializer.java:0)