4.0.0 pl.weeia app-parent 1.0 pom UTF-8 11 11 maven-clean-plugin 3.3.2 maven-resources-plugin 3.3.1 maven-compiler-plugin 3.12.1 maven-surefire-plugin 3.2.5 maven-jar-plugin 3.3.0 maven-install-plugin 3.1.1 maven-deploy-plugin 3.1.1 maven-site-plugin 4.0.0-M13 maven-project-info-reports-plugin 3.5.0 org.junit.jupiter junit-jupiter-engine 5.10.2 test AddCalculator MultiplyCalculator PowerCalculator MergeCalculator