4.0.0 core-java-collections-maps 0.1.0-SNAPSHOT core-java-collections-maps jar com.baeldung.core-java-modules core-java-modules 0.0.1-SNAPSHOT ../ org.apache.commons commons-collections4 ${commons-collections4.version} org.assertj assertj-core ${assertj.version} test 4.1 3.6.1