title: Java HashMap; Is recommendable?
body: <p>It has been reported that from Java JDK 1.3.1 to JDK 1.4.0
  HashMap is 5 times slower (see 
  <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4669519" rel="nofollow">here</a>).</p>
  
  <p>What is the state of the art of HashMap at java 6?
  Is recommendable to be used?</p>
  
  <p>Thanks.</p>