java-tutorials/spring-batch/src/main/resources/logback.xml

<configuration>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <layout class="ch.qos.logback.classic.PatternLayout">
            <Pattern>
                %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
            </Pattern>
        </layout>
    </appender>

    <logger name="org.baeldung.taskletsvschunks" level="debug"
            additivity="false">
        <appender-ref ref="STDOUT" />
    </logger>
    
    <logger name="org.baeldung.batchscheduler" level="debug" additivity="false">
        <appender-ref ref="STDOUT" />
    </logger>

    <root level="error">
        <appender-ref ref="STDOUT" />
    </root>

</configuration>