4.0.0 core-java-collections-6 core-java-collections-6 jar core-java-modules com.baeldung.core-java-modules 0.0.1-SNAPSHOT junit-platform-runner org.junit.platform test ${junit-platform.version} junit-jupiter org.junit.jupiter test ${junit.version} junit-vintage-engine org.junit.vintage test ${junit.version} maven-compiler-plugin 9 9 org.apache.maven.plugins 5.10.2