4.0.0 core-java-collections-set 0.1.0-SNAPSHOT core-java-collections-set jar com.baeldung parent-java 0.0.1-SNAPSHOT ../../parent-java org.apache.commons commons-collections4 ${commons-collections4.version} com.google.code.gson gson ${gson.version} commons-lang commons-lang ${commons-lang.version} 4.3 2.8.5