<dependency>
<groupId>io.opentracing</groupId>
<artifactId>opentracing-api</artifactId>
<version>0.31.0-RC2</version>
</dependency>
@Grapes(
@Grab(group='io.opentracing', module='opentracing-api', version='0.31.0-RC2')
)
<parent> <groupId>io.opentracing</groupId> <artifactId>parent</artifactId> <version>0.31.0-RC2</version> </parent>