This content originally appeared on DEV Community and was authored by Ryosuke Hasebe
TL;DR
When upgrading to JUnit 5.12.0 or later, be sure to add:
testRuntimeOnly("org.junit.platform:junit-platform-launcher")
(The version is omitted under the assumption that you’re using a BOM.)
If you don’t add this, the test task will fail to execute, so you’ll likely notice the issue right away.
Why
If you don’t explicitly declare a dependency on junit-platform-launcher, Gradle will implicitly use its bundled version.
As of Gradle 8.13, the bundled version is 1junit-platform-launcher 1.8.2` (whereas the latest version currently is 1.12.0).
JUnit 5.12 is incompatible with junit-platform-launcher 1.8.2, which results in test execution failures.
Gradle was aware of such potential issues and, starting with Gradle 8, recommended explicitly specifying junit-platform-launcher.
See the official Gradle upgrade guide: Gradle 8 Upgrade Guide
Ref
This content originally appeared on DEV Community and was authored by Ryosuke Hasebe