4.0.0 core-java-collections-set core-java-collections-set jar com.baeldung.core-java-modules core-java-modules 0.0.1-SNAPSHOT org.apache.commons commons-collections4 ${commons-collections4.version} com.google.code.gson gson ${gson.version} org.apache.commons commons-lang3 ${commons-lang3.version} org.apache.maven.plugins maven-compiler-plugin 2.10.1