title: What does "()V" mean in a class signature?
body: <p>I created a constructor with Javassist which has no real method </p>
  
  <pre><code>CtConstructor c = CtNewConstructor.make ( argTypes, null, newClass );
  </code></pre>
  
  <p>When I'm trying to put out the signature of this class </p>
  
  <pre><code>c.getSignature();
  </code></pre>
  
  <p>I get </p>
  
  <pre><code>public Echo ()V
  </code></pre>
  
  <p>I'm confused what "V" means? I expected either public Echo (); or something similar...</p>