title: Netty running at 100% CPU
body: <p>I've seen other references to this issue, such as <a href="https://github.com/netty/netty/issues/1873">here</a> and <a href="https://github.com/netty/netty/issues/327">here</a>, although these reference different versions of Netty. Tried this using the latest in the 4.0 branch (4.0.29) and in the 5.0 alpha branch (5.0-Alpha3). Local (non-linux) jdk 1.8.040, fine. Remote (Linux) with java jdk 1.8.025-b17 get 100% cpu.
  Linux kernel version 2.6.32.  </p>
  
  <p>Tried using <code>EpollEventLoopGroup();</code></p>
  
  <p>Tried calling  </p>
  
  <pre><code>workerGroup = new NioEventLoopGroup();
  workerGroup.rebuildSelectors();
  </code></pre>
  
  <p>Can anyone offer any suggestions? I've seen references to this bug w/different versions of Netty. Jdk bug? Netty bug?  Process goes to 100% immediately on startup and stays there.</p>
  
  <p>Update: Upgraded to java 1.8.045, same difference.</p>
  
  <p><a href="https://gist.github.com/stevenbenjamin/3dca326810e680a397b0">JStack output</a> of all runnable threads (there's some rabbitmq stuff in there, only included for completeness - that's common to other applications, and is not the cause of the problem).</p>