<dependency>
  <groupId>org.checkerframework</groupId>
  <artifactId>checker-qual</artifactId>
  <version>3.4.1</version>
</dependency>

implementation 'org.checkerframework:checker-qual:3.4.1'

implementation("org.checkerframework:checker-qual:3.4.1")

libraryDependencies += "org.checkerframework" % "checker-qual" % "3.4.1"

@Grapes(
  @Grab(group='org.checkerframework', module='checker-qual', version='3.4.1')
)

<dependency org="org.checkerframework" name="checker-qual" rev="3.4.1" />

[org.checkerframework/checker-qual "3.4.1"]

'org.checkerframework:checker-qual:jar:3.4.1'