J2SE Version (please include all output from java -version flag):
  java version "1.4.1-beta"
  Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-beta-b8)
  Java HotSpot(TM) Client VM (build 1.4.1-beta-b8, mixed mode)

Does this problem occur on J2SE 1.3 or 1.4?  Yes / No (pick one)
  Only on 1.4 and 1.4.1 Plugin, works fine with IE native VM and
  1.3.1 Plugin.


Operating System Configuration Information (be specific):
  windows

Bug Description:
  Some applets will consume 100% CPU usage by using 1.4/1.4.1 plugin in
  Netscape and IE browser. 

  Attached a program snippet of some sort that reproduces the probelm:

     Panel m_bodyPane = new Panel();

     ....

        synchronized(viewLock_) {
            m_bodyPane.removeAll();
            System.out.println(new Date().toString());
            for (i = 0; i < m_vRow.size(); i++) {
                r = (QuoteRow)m_vRow.elementAt(i);
                if (!m_bodyPane.isAncestorOf(r)) {
                        m_bodyPane.add(r);
                }
            } // end for
         System.out.println(new Date().toString());

  Panel.add(Component) method, it takes 100% CPU, and last about 5 second to 
  add one component.
 
  m_vRow.size() is a small number, no more than 10.

  and if remove line "m_bodyPane.add(r);", CPU will be perfect. And the 
  output of "new Date().toString()" show me there is 10 to 20 seconds different.


Steps to Reproduce (be specific):
  go to http://demo.xstreamquotes.com/50trial.html (call ingrid to get
  the username and password).

  After logged in, just click those "LAST/NET/VOLUME" tabs, you will
  see the CPU usage go high up to 100%.