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.
You can use only junit-jupiter as a test dependency instead of junit-jupiter-api, junit-platform-launcher, junit-jupiter-engine.
junit-jupiter
junit-jupiter-api
junit-platform-launcher
junit-jupiter-engine
org.junit.jupiter junit-jupiter 5.5.2 test