See <https://builds.apache.org/job/maven-plugin-tools-jdk-1.7/108/>
- Build failed in Jenkins: maven-plugin-tools-jdk-1.7 ... Apache Jenkins Server
- Build failed in Jenkins: maven-plugin-tools-jdk... Apache Jenkins Server
- Build failed in Jenkins: maven-plugin-tools... Apache Jenkins Server
- Jenkins build is back to normal : maven... Apache Jenkins Server
