<dependency>
<groupId>org.eclipse.californium</groupId>
<artifactId>demo-certs</artifactId>
<version>3.12.1</version>
</dependency>
@Grapes(
@Grab(group='org.eclipse.californium', module='demo-certs', version='3.12.1')
)
<parent> <groupId>org.eclipse.californium</groupId> <artifactId>parent</artifactId> <version>3.12.1</version> </parent>