4.0.0 core-java-io-4 0.1.0-SNAPSHOT core-java-io-4 jar com.baeldung.core-java-modules core-java-modules 0.0.1-SNAPSHOT ../ commons-io commons-io ${commons-io.version} log4j log4j ${log4j.version} org.slf4j log4j-over-slf4j ${org.slf4j.version} org.assertj assertj-core ${assertj.version} test 3.6.1