<dependency> <groupId>org.ops4j.pax.logging</groupId> <artifactId>pax-logging-log4j1</artifactId> <version>2.10.11</version> </dependency> text Import-Package: org.apache.log4j properties log4j.rootLogger=INFO, stdout log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n import org.apache.log4j.Logger; public class MyClass { private static final Logger logger = Logger.getLogger(MyClass.class); public void doSomething() { logger.info("Doing something"); } }