junit-jupiter (+vintage), maven, java, kotlin

Mixing Java and Kotlin test classes with JUnit 5 Jupiter and JUnit 4 Vintage test engines. Supported JDK 1.8 and JDK 11.

The junit5-jupiter-starter-maven-kotlin sample demonstrates how to execute JUnit 4 Vintage test together with JUnit 5 Jupiter tests by using Maven build tool in mixed java / kotlin test classes in the project:

Please note that this project is uses the Maven Wrapper 3.6.1 version. This helps you ensure that already tested versions are not going to be failed if locally installed different maven version.

Also please make a note, that java test classes are not recognizable from src/test/kotlin test sources folder:

src/
  test/
    java/
      **/*JavaJUnit4VintageTest.java  +
      **/*JavaJUnit5JupiterTest.java  +
      **/*KotlinJUnit4VintageTest.kt  +
      **/*KotlinJUnit5JupiterTest.kt  +
    kotlin/
      **/*JavaJUnit4VintageTest.java  -
      **/*JavaJUnit5JupiterTest.java  -
      **/*KotlinJUnit4VintageTest.kt  +
      **/*KotlinJUnit5JupiterTest.kt  +

Here + means that marked type of tests classes by language and engine are going to be executed