title: I install java7 and java8 using Jenv. Then, run "jenv global oracle64-1.8.0.121", I get error saying that it's not installed
body: <p>On my Mac-pro OS-X Yosemite, I install java7 and java8 using Jenv. </p>
  
  <pre><code>$ brew cask install java8
  
  $ brew cask install java7
  </code></pre>
  
  <p>Then execute the "jenv add" commands as followed for each java:</p>
  
  <pre><code>$ sudo jenv add /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home/
  </code></pre>
  
  <blockquote>
    <p>oracle64-1.7.0.80 added</p>
  </blockquote>
  
  <p>I can see both at /Users/xxxxx/.jenv/versions</p>
  
  <pre><code>$ ls -lrt
  </code></pre>
  
  <blockquote>
    <p>lrwxr-xr-x  1 root  staff  64 Feb  1 13:42 oracle64-1.8.0.121 ->
    /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home</p>
    
    <p>lrwxr-xr-x  1 root  staff  63 Feb  1 13:49 oracle64-1.7.0.80 ->
    /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home</p>
  </blockquote>
  
  <p>But when I try to set java8 as global, it says that java8 is not installed.</p>
  
  <pre><code>$ jenv global oracle64-1.8.0.121
  </code></pre>
  
  <blockquote>
    <p>jenv: version `oracle64-1.8.0.121' not installed</p>
  </blockquote>
  
  <p>Did I miss anything here? How can I fix this issue? </p>