<dependency>
  <groupId>com.googlecode.concurrent-trees</groupId>
  <artifactId>concurrent-trees</artifactId>
  <version>2.6.0</version>
</dependency>

implementation 'com.googlecode.concurrent-trees:concurrent-trees:2.6.0'

implementation("com.googlecode.concurrent-trees:concurrent-trees:2.6.0")

libraryDependencies += "com.googlecode.concurrent-trees" % "concurrent-trees" % "2.6.0"

@Grapes(
  @Grab(group='com.googlecode.concurrent-trees', module='concurrent-trees', version='2.6.0')
)

<dependency org="com.googlecode.concurrent-trees" name="concurrent-trees" rev="2.6.0" />

[com.googlecode.concurrent-trees/concurrent-trees "2.6.0"]

'com.googlecode.concurrent-trees:concurrent-trees:jar:2.6.0'