title: Is there a maven property set by Jenkins?
body: <p>Question is quite simple, in fact.</p>
  
  <p>I tend to remember having seen here answers to maven/jenkins questions explaining that it is possible to activate some portions of a maven build in Jenkins by activating those profiles using a property, given by Jenkins when it starts the maven build.</p>
  
  <p>But what is the name of that Jenkins property ? And which is that property value ?</p>