title: Converting an array of long to ArrayList<Long>
body: <p>This sadly doesn't work:</p>
  
  <pre><code>long[] longs = new long[]{1L};
  ArrayList&lt;Long&gt; longArray = new ArrayList&lt;Long&gt;(longs);
  </code></pre>
  
  <p>Is there a nicer way except adding them manually?</p>