title: Turn java line comments into block comments automatically
body: <p>I have a bunch of java files with multiple sequences of line comments:</p>
  
  <pre><code>// blah blah blah
  // blah blah blah 
  // blah blah blah 
  </code></pre>
  
  <p>which I want to convert into block comments with the extra opening and ending line:</p>
  
  <pre><code>/**
   * blah blah blah 
   * blah blah blah 
   * blah blah blah 
   */
  </code></pre>
  
  <p>Is there any easy way to it automatically for all of the comments? Preferably with <code>Vim</code> or <code>Eclipse</code>?
  Sure I can write my own script, but I hope there is an easier solution.</p>