<dependency>
  <groupId>com.liferay</groupId>
  <artifactId>com.liferay.portal.log4j</artifactId>
  <version>2.0.4</version>
</dependency>

implementation 'com.liferay:com.liferay.portal.log4j:2.0.4'

implementation("com.liferay:com.liferay.portal.log4j:2.0.4")

libraryDependencies += "com.liferay" % "com.liferay.portal.log4j" % "2.0.4"

@Grapes(
  @Grab(group='com.liferay', module='com.liferay.portal.log4j', version='2.0.4')
)

<dependency org="com.liferay" name="com.liferay.portal.log4j" rev="2.0.4" />

[com.liferay/com.liferay.portal.log4j "2.0.4"]

'com.liferay:com.liferay.portal.log4j:jar:2.0.4'