4.0.0 design-patterns-behavioral 1.0 design-patterns-behavioral jar com.baeldung patterns 1.0.0-SNAPSHOT org.jetbrains annotations ${intellij.annotations.version} org.projectlombok lombok ${lombok.version} provided org.apache.commons commons-lang3 ${commons-lang3.version} org.assertj assertj-core ${assertj-core.version} test 16.0.2 3.9.1