<dependency>
  <groupId>org.apache.httpcomponents</groupId>
  <artifactId>httpcore-nio</artifactId>
  <version>4.4.16</version>
</dependency>

'org.apache.httpcomponents:httpcore-nio:jar:4.4.16'

<dependency org="org.apache.httpcomponents" name="httpcore-nio" rev="4.4.16">
  <artifact name="httpcore-nio" type="jar" />
</dependency>

@Grapes(
@Grab(group='org.apache.httpcomponents', module='httpcore-nio', version='4.4.16')
)

compile 'org.apache.httpcomponents:httpcore-nio:4.4.16'

libraryDependencies += "org.apache.httpcomponents" % "httpcore-nio" % "4.4.16"

[org.apache.httpcomponents/httpcore-nio "4.4.16"]