<dependency>
  <groupId>org.webjars.bower</groupId>
  <artifactId>boot</artifactId>
  <version>4.0.0-alpha.4</version>
</dependency>

implementation 'org.webjars.bower:boot:4.0.0-alpha.4'

implementation("org.webjars.bower:boot:4.0.0-alpha.4")

libraryDependencies += "org.webjars.bower" % "boot" % "4.0.0-alpha.4"

@Grapes(
  @Grab(group='org.webjars.bower', module='boot', version='4.0.0-alpha.4')
)

<dependency org="org.webjars.bower" name="boot" rev="4.0.0-alpha.4" />

[org.webjars.bower/boot "4.0.0-alpha.4"]

'org.webjars.bower:boot:jar:4.0.0-alpha.4'