$ mvn clean install -DskipTests
[WARNING] Rule 2: org.apache.maven.plugins.enforcer.RequireJavaVersion failed with message:
Java is out of date.
HBase requirs at least version 1.8 of the JDK to properly build from source.
You appear to be using an older version. You can use either "mvn -version" or
"mvn enforcer:display-info" to verify what version is active.
See the reference guide on building for more information: http: