<dependency>
  <groupId>org.webjars.npm</groupId>
  <artifactId>leaflet</artifactId>
  <version>0.7.3</version>
</dependency>

implementation 'org.webjars.npm:leaflet:0.7.3'

implementation("org.webjars.npm:leaflet:0.7.3")

libraryDependencies += "org.webjars.npm" % "leaflet" % "0.7.3"

@Grapes(
  @Grab(group='org.webjars.npm', module='leaflet', version='0.7.3')
)

<dependency org="org.webjars.npm" name="leaflet" rev="0.7.3" />

[org.webjars.npm/leaflet "0.7.3"]

'org.webjars.npm:leaflet:jar:0.7.3'