kotlin-extensions | Utility extensions to boost your programming with Kotlin | Plugin library

I'm having trouble getting liquibase to execute my sql script in my SpringBoot Kotlin appllication.

Here is my build.gradle.kts

When trying to use Java 17 with Kotlin I'm having the following issue when trying to run tests. It seems that test classes are compiled with Java 17 but Gradle is trying to run those with Java 11. The project is a simple one it is generated using start.spring.io

I created a project with spring initializr with kotlin and gradle to study hexagonal architecture in microservices. I'm using IntelliJ with modules to dividing the code but the spring-jpa dependency doesn't work in module (or subproject).

The start build.gradle.kts is:

I'm writing an app that works with Redis Stream using Spring Data Redis. I'm using spring-data-redis with Lettuce. I can successfully write to the stream as I can validate it directly in Redis via redis-cli, and I see the messages are in Redis. When it comes to reading from the stream using StreamReceiver, it kind of works but my tests fail for the coroutines version.

So, I've implemented two versions for reading with different return types:

• Flux. I test it using reactor-test classes, similar to what Spring Data Redis team does. It works fine: received items are printed out and test passes.
• Flow. I test it using FlowTurbine. This tests fails, even though the received items are printed out; FlowTurbine just times out. I tried using directly blocking Flow.toList() instead of Turbine's test, but in this case the call just blocks forever. I'm probably doing something wrong, when I deal with the Flow. What am I doing wrong? And how to fix it?

TestDataRedisRepository.kt content:

I am attempting to deploy a Spring Boot application to GCP's App Engine Standard environment. The application is able to receive published messages from PubSub while running locally on my dev machine. I have configured the application to authenticate with service credentials via the $GOOGLE_APPLICATON_CREDENTIALS environment variable.

However, when I attempt to publish this application to App Engine, and then subsequently tail the logs (via gcloud app logs tail -s test-app-service), I see the following error: Factory method 'googleCredentials' threw exception; nested exception is java.io.FileNotFoundException: src/main/resources/app-engine-service-creds.json (No such file or directory)

And the application fails to start. This happens both when I run the gcloud deploy CLI command:

I have an example SpringBoot app in Kotlin and WebFlux. I divided whole application into modules (as I'm used to from asp.net).

Modules:

• core (models, DTO, helpers, etc...) referenced everywhere
• data (repositories, tables...) referenced only in business
• business (services, handlers...) referenced in api
• api actual SpringBoot application

My problem now is how to properly work with ReactiveCrudRepository<> and repositories in general. I have config class in data module to enable R2dbcRepositories.

How can we enable support for the spring security kotlin DSL?

As you can see from the Screenshot of the IDE (IntelliJ), the DSL is not available:

This is the full SecurityConfig.kt file:

this is my test class:

I changed the question title since Kiskae provided a solution to the broader problem which makes the question about wrapping a callback API needless for the particular problem. The former question title was:

How to wrap asynchronous callback into suspend function using Coroutines?

I am trying to wrap the ConnectivityManager.NetworkCallback API (>= SDK level 21) of the Android framework into a suspend function to facilitate a synchronous API: