4.0.0 slf4j-log4j 0.0.1-SNAPSHOT slf4j-log4j jar com.stackify.slf4j.guide slf4j-parent-module 1.0.0-SNAPSHOT .. org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-logging org.slf4j slf4j-log4j12 org.springframework.boot spring-boot-starter-test test 1.7.25