Analyses done by ###@###.### and ###@###.### have found links to 1.4 and 5.0 documents, and broken links, in the Mustang sources. For the JMX API, they are:

  1 javax/management/remote/JMXConnectorFactory.java
  1 javax/management/remote/JMXConnectorServerFactory.java
    http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html

  3 javax/management/remote/rmi/package.html
    href="http://java.sun.com/javase/6/docs/guide/rmi/codebase.html">
    @see <a href="http://java.sun.com/j2se/1.5.0/docs/guide/rmi/index.html">
    @see <a href="http://java.sun.com/j2se/1.5.0/docs/guide/jndi/index.html">

  1 javax/management/package.html
  1 javax/management/loading/package.html
  1 javax/management/modelmbean/package.html
  1 javax/management/monitor/package.html
  1 javax/management/openmbean/package.html
  2 javax/management/relation/package.html
    http://java.sun.com/javase/6/docs/guide/jmx/
  [I am not sure if this case is really a broken link or if the script isn't clever enough to realize it's correct.]