<dependency>
<groupId>com.liferay</groupId>
<artifactId>com.liferay.portal.log4j.extender</artifactId>
<version>3.0.6</version>
</dependency>
@Grapes(
@Grab(group='com.liferay', module='com.liferay.portal.log4j.extender', version='3.0.6')
)