<dependency>
<groupId>com.google.api</groupId>
<artifactId>gax-httpjson</artifactId>
<version>0.76.1</version>
</dependency>
compile
|-- com.google.code.gson:gson:2.8.6
|-- com.google.guava:guava:29.0-android
|-- com.google.code.findbugs:jsr305:3.0.2
|-- org.threeten:threetenbp:1.4.1
|-- com.google.http-client:google-http-client:1.34.2
|-- com.google.auth:google-auth-library-oauth2-http:0.21.0