java.lang.NoClassDefFoundError: org/junit/platform/commons/PreconditionViolationException when trying run junit5 test with maven

Question

When trying to run tests using command mvn test I receive an error:

[ERROR] There was an error in the forked process
[ERROR] java.lang.NoClassDefFou         


        

Answer 1

I got the same problem with Gradle build and I got my issue resolved using the JUnit Bill of Materials(BOM), which will take care of Junit's direct and transitive dependencies version.

dependencyManagement {
    imports {
        mavenBom "org.junit:junit-bom:5.5.2"
    }
}
dependencies {
...
    testCompile('org.junit.jupiter:junit-jupiter-api')
    testRuntime('org.junit.jupiter:junit-jupiter-engine')
    testCompile('org.junit.jupiter:junit-jupiter-params')
    testCompile('org.junit.platform:junit-platform-launcher')
    testCompile('org.junit.platform:junit-platform-runner')
}

NOTE: I have not specified the version because the Junit BOM will take care of the Junit dependencies' version management role.