4.0.0 org.baeldung reactor-core 0.0.1-SNAPSHOT reactor-core com.baeldung parent-modules 1.0.0-SNAPSHOT io.projectreactor reactor-core ${reactor.version} io.projectreactor reactor-test ${reactor.version} test org.assertj assertj-core ${assertj.version} test 3.3.9.RELEASE 3.6.1