fix: Add fail function. fixes #67

mentioned in commit e7d73b0a

mentioned in merge request to-be-continuous/samples/maven-on-openshift!78 (merged)

mentioned in merge request to-be-continuous/samples/maven-on-gcloud!119 (merged)

mentioned in merge request to-be-continuous/samples/maven-on-kubernetes!128 (merged)

mentioned in merge request to-be-continuous/samples/maven-library!45 (merged)

mentioned in merge request d3269/tbc-cicd-for-java!5

mentioned in merge request d3269/tbc-cicd-for-java!9