title: webupd8 JAVA_HOME not set after installing oracle-java8-set-default
body: <p>I'm following this <a href="http://www.webupd8.org/2012/09/install-oracle-java-8-in-ubuntu-via-ppa.html">link</a> to install Oracle Java 8.</p>
  
  <p>Maybe I got this wrong, but I suppose JAVA_HOME should be set after installing <code>oracle-java8-set-default</code>. </p>
  
  <p>If I <code>echo $JAVA_HOME</code> or <code>printenv | grep -i java</code> nothing comes up. I'm using Linux Mint 17.1 (Rebecca)</p>
  
  <p>Thanks!</p>