4.0.0 libraries-apache-commons-collections libraries-apache-commons-collections com.baeldung parent-modules 1.0.0-SNAPSHOT org.apache.commons commons-collections4 ${commons.collections.version} org.hamcrest java-hamcrest ${org.hamcrest.java-hamcrest.version} test org.assertj assertj-core ${assertj.version} test 4.1 3.6.2 2.0.0.0