title: Mongodb 3.0 java insertOne
body: <p>I'm trying to upgrade my legacy application from Java driver 2.10.1 into 3.0.0
  So the insert method is changed into insertOne. but <code>DBCollection.insert()</code> returned the result, where I can check the <code>getError()</code>. But <code>MongoCollection.insertOne()</code> does not return a value.</p>
  
  <p>How to check an error of operation?</p>