title: Can't install openjdk-11 with yum in container
body: <p>I am trying to install openjdk-11 inside a container (lambci/lambda:build-python3.6)</p>
  <p>Multiple sources claim you can install openjdk 11 by running:</p>
  <pre><code>yum update
  
  yum install java-11-openjdk-devel
  </code></pre>
  <p>However all I get is:</p>
  <pre><code>No package java-11-openjdk-devel available.
  </code></pre>
  <p>And yum search doesn't return anything for jdk 11.</p>
  <p>Any idea what I'm doing wrong?</p>
  <p>Thank you!</p>