<dependency>
<groupId>org.apache.zipkin.proto3</groupId>
<artifactId>zipkin-proto3</artifactId>
<version>0.2.1</version>
</dependency>
@Grapes(
@Grab(group='org.apache.zipkin.proto3', module='zipkin-proto3', version='0.2.1')
)
<parent> <groupId>org.apache</groupId> <artifactId>apache</artifactId> <version>21</version> </parent>