Eclipse No tests found using JUnit 5 caused by NoClassDefFoundError for LauncherFactory

Question

The problem

Whenever I run my projects JUnit test (using JUnit 5 with Java 9 and Eclipse Oxygen 1.a) I encounter the problem that eclipse can\'t find any tests.

Answer 1

I faced this issue with Eclipse (Version: 2019-12 (4.14.0)) too. The solution seems either to use IntelliJ or to use the Maven test to run such tests in Eclipse.