4.0.0 com.baeldung logmdc 0.0.1-SNAPSHOT logmdc tutorial on logging with MDC org.springframework spring-context 4.3.3.RELEASE org.springframework spring-webmvc 4.3.3.RELEASE log4j log4j 1.2.17 org.apache.logging.log4j log4j-api 2.7 org.apache.logging.log4j log4j-core 2.7 com.lmax disruptor 3.3.4 ch.qos.logback logback-classic 1.1.7 junit junit 4.12 test