Applet_case set1u-64:can't load on solaris10-x86 with 1.4.2 and ff2.0

case: set1u-64
URL: http://www.us.zylom.com/game/285/egyptian-pyramid.html
JDK/JREBuildNo. 1.4.2_22b04
WebBrowser: firefox2.0
AppletName: Egyptian Pyramid

# Steps to reproduce:
1.Browse to URL provided.
2.Click 'Play' to start the game
3.Play the game, test the applet using all features and provided functionality.
4.Attempt to resize the applet browser window.
5.Check the Java Console for warnings/errors.
6.Close all applet/browser windows to terminate the applet.
# Actual behavior:
The applet can't be loaded,and there is exception thrown on java console.

Screenshot and log,please see the attachment.
#Expected:
The appelt can run normally.
# Java console exceptions:
Cookie service is not available - use cache to determine "Cookie"
java.lang.NullPointerException
        at com.zylom.game.egyptianpyramid.z.a(DashoA8986)
        at com.zylom.game.egyptianpyramid.z.a(DashoA8986)
        at com.zylom.game.egyptianpyramid.j.j(DashoA8986)
        at com.zylom.game.egyptianpyramid.c.stop(DashoA8986)
        at sun.applet.AppletPanel.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

# Validation of fail case:
1.same configuration/6u10 b33, The applet can run normally.
2.same configuration/1.4.2u22 b03 j4b, Same issue.
3.same configuration/1.4.2u19 b04 fcs ( latest live ), Same issue.
4.same JDK ( test target ), same OS, MZ1.7, Same issue.
Same issue is reported for set1u-63 and set1u-65
case: set1u-63
URL: http://www.us.zylom.com/game/439/aloha-solitaire
JDK/JREBuildNo. 1.4.2_22b04
WebBrowser: firefox2.0
AppletName: Aloha Solitaire

case: set1u-65
URL: http://www.us.zylom.com/game/26/fifteens.html
JDK/JREBuildNo. 1.4.2_22b04
WebBrowser: firefox2.0
AppletName: Fifteens
we found this issue only from 1.4.2_22b04 testing.