Hi,
I think that there is a typo in the following pom.xml file
openshift/hello-microservice-openshift-health-checks/pom.xml
The healthcheck maven dependency should be
<dependency>
<groupId>io.vertx</groupId>
<artifactId>vertx-health-check</artifactId>
</dependency>
i.e. vertx-health-check rather than vertx-health-checks