title: Kryo on Android: Could not find class 'sun.nio.ch.DirectBuffer'
body: <p>I use Kryonet on Android, and after start up, the VM crashes with this error:
  Could not find class 'sun.nio.ch.DirectBuffer', referenced from method com.esotericsoftware.kryo.util.UnsafeUtil.releaseBuffer.</p>
  
  <p>What is the problem?</p>