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Spring 4.3: Using a TaskDecorator to copy MDC data to @Async threads

In this post I am going to show how to copy MDC data from Web threads to @Async threads using a brand new Spring Framework 4.3 feature: ThreadPoolTaskExecutor#setTaskDecorator() [set-task-decorator]. This is the end result: Notice the third and second last

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Posted in Spring

Spring Boot: A bit more cool with Kotlin

In the context of my favorite framework, Spring Boot, I have recently started to explore the effect of using the Kotlin 1.1 programming language (as an alternative to Java 8). This post describes a few language features that may be

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Posted in Kotlin, Spring

Spring Boot: Prometheus actuator endpoint

In this post I show how you can add support for Prometheus in Spring Boot applications. Step 1 of 2: Add the Prometheus Spring Boot Starter You can get Prometheus support in Spring Boot applications via a so-called “starter”. Here

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Posted in Spring

Spring Boot: Controlling timezones with Hibernate

In this post I show how you, from a Spring Boot application, can control the timezone used by Hibernate when it communicates timestamps with the database. This post is inspired by a very similar recent post by Vlad Mihalcea [1], Hibernate

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Posted in Hibernate, Spring

Spring: Bean qualification

In this post I present how you can control a situation in which there are multiple beans that qualifies for an injection point in Spring. The material here has been tested with Spring Framework 4.3. The problem Let’s first take a look at the

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Posted in Spring

Spring Boot and Gradle: Separating tests

In this post I will present 4 different approaches to separating unit tests from integration tests, so that they can be run independently of each other. Here’s the 4 different approaches: Separation based on name patterns Separation based on JUnit categories Separation based

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Posted in Spring

Spring Boot 1.4: Gherkin tests

In this post I show how you can implement Gherkin tests for Spring Boot 1.4.1. Here is an example of a Gherkin based test script: The Feature, Scenario, Scenario Outline, Given, When, Then and And constructs are part of the Gherkin test language [1]. Such

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Posted in BDD, Spring
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