4.0.0 org.slf4j slf4j-parent 2.0.17 ../parent/pom.xml slf4j-simple jar SLF4J Simple Provider SLF4J Simple Provider http://www.slf4j.org org.slf4j.simple org.slf4j.simple.SimpleServiceProvider simple org.slf4j slf4j-api org.slf4j slf4j-api test-jar ${project.version} test