Webrick

<dependency>
    <groupId>rubygems</groupId>
    <artifactId>webrick</artifactId>
    <version>1.7.0</version>
</dependency>

compile group: 'rubygems', name: 'webrick', version: '1.7.0'

compile 'rubygems:webrick:1.7.0'

libraryDependencies += "rubygems" % "webrick" % "1.7.0"

<dependency org="rubygems" name="webrick" rev="1.7.0"/>

@Grapes(
            @Grab(group='rubygems', module='webrick', version='1.7.0')
        )

[rubygems/webrick "1.7.0"]

'rubygems:webrick:jar:1.7.0'