title: CompositeData has no keys() method?
body: <p>I'm using JMX to save some diagnostic information from a remote process. Looking at the interface in jconsole shows that the return type is <a href="http://java.sun.com/j2se/1.5.0/docs/api/javax/management/openmbean/CompositeData.html" rel="noreferrer">CompositeData</a> (the data actually comes back as <a href="http://java.sun.com/j2se/1.5.0/docs/api/javax/management/openmbean/CompositeDataSupport.html" rel="noreferrer">CompositeDataSupport</a>). I want to output all the key/value pairs that are associated with this object.</p>
  
  <p>The problem is that the interface just seems to have a "values()" method with no way of getting the keys. Am I missing something here? Is there some other way to approach this task?</p>
  
  <p>Thanks!</p>