Thread_safe

<dependency>
    <groupId>rubygems</groupId>
    <artifactId>thread_safe</artifactId>
    <version>0.3.4</version>
</dependency>

compile group: 'rubygems', name: 'thread_safe', version: '0.3.4'

compile 'rubygems:thread_safe:0.3.4'

libraryDependencies += "rubygems" % "thread_safe" % "0.3.4"

<dependency org="rubygems" name="thread_safe" rev="0.3.4"/>

@Grapes(
            @Grab(group='rubygems', module='thread_safe', version='0.3.4')
        )

[rubygems/thread_safe "0.3.4"]

'rubygems:thread_safe:jar:0.3.4'