pulsar-client/src/test/resources/logback-test.xml

<configuration scan="true">
	<logger name="org.apache" level="INFO" />
	<logger name="org" level="INFO" />
	<logger name="com" level="INFO" />
	<logger name="io" level="INFO" />
	<logger name="com.yahoo.pulsar.client.api" level="INFO" />

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

	<root level="DEBUG">
		<appender-ref ref="STDOUT" />
	</root>
</configuration>