title: Why is Object.clone() native in Java?
body: <p>The <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--"><code>clone</code></a> method on <code>Object</code>, which creates an exact copy of an object, is declared as:</p>
  
  <pre><code>protected native Object clone() throws CloneNotSupportedException;
  </code></pre>
  
  <p>Why is it <code>native</code>?</p>