The links to java.lang.management on these pages are broken:

http://java.sun.com/j2se/1.5.0/docs/guide/management/extension/overview-summary.html

http://java.sun.com/j2se/1.5.0/docs/guide/management/extension/com/sun/management/package-summary.html

They can be fixed by using {@docRoot} in the doc comments
something like this:

-----------------------------------------------------------------
This package contains Sun Microsystem's platform extension to
the implementation of the
<a href="{@docRoot}/../../../api/java/lang/management/package-summary.html">
java.lang.management</a> API and also defines the management
interface for some other components for the platform.

<p>
All platform MBeans are registered in the <em>platform MBeanServer</em>
which can be obtained via the
<a href="{@docRoot}/../../../api/java/lang/management/ManagementFactory#getPlatformMBeanServer">
java.lang.management.ManagementFactory.getPlatformMBeanServer</a>
-----------------------------------------------------------------

The {@docRoot} tag is described here:
http://java.sun.com/j2se/1.5.0/docs/tooldocs/solaris/javadoc.html#{@docRoot}