<dependency>
  <groupId>maven</groupId>
  <artifactId>maven-xdoc-plugin</artifactId>
  <version>1.6</version>
</dependency>

implementation 'maven:maven-xdoc-plugin:1.6'

implementation("maven:maven-xdoc-plugin:1.6")

libraryDependencies += "maven" % "maven-xdoc-plugin" % "1.6"

@Grapes(
  @Grab(group='maven', module='maven-xdoc-plugin', version='1.6')
)

<dependency org="maven" name="maven-xdoc-plugin" rev="1.6" />

[maven/maven-xdoc-plugin "1.6"]

'maven:maven-xdoc-plugin:jar:1.6'