Installing Optional Packages failing with Kernel JRE.

How to reproduce:
Try loading the following URL
http://sqindia.india.sun.com/disk13/deployment/_Raghu/raghu_baseline/StdExtn/windows/Standalone_deployment_plugin_2006_07_26_17_34_53/Admin.Windows_XP.x86/StdExtn/testbase/optpkgs/applethtml/Test_Pure.html

Exception shown:
java.lang.NoClassDefFoundError: Could not initialize class sun.misc.ExtensionInfo
   at sun.misc.ExtensionDependency.checkExtensionAgainst(Unknown Source)
   at sun.misc.ExtensionDependency.checkExtensionAgainstInstalled(Unknown Source)
   at sun.misc.ExtensionDependency.checkExtension(Unknown Source)
   at sun.misc.ExtensionDependency.checkExtensions(Unknown Source)
   at sun.misc.ExtensionDependency.checkExtensionsDependencies(Unknown Source)
   at sun.misc.URLClassPath$JarLoader.parseExtensionsDependencies(Unknown Source)
   at sun.misc.URLClassPath$JarLoader.getClassPath(Unknown Source)
   at sun.misc.URLClassPath.getLoader(Unknown Source)
   at sun.misc.URLClassPath.getResource(Unknown Source)
   at java.net.URLClassLoader$1.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(Unknown Source)
   at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:155)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:127)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:618)
   at sun.applet.AppletPanel.createApplet(AppletPanel.java:778)
   at sun.plugin.AppletViewer.createApplet(AppletViewer.java:2070)
   at sun.applet.AppletPanel.runLoader(AppletPanel.java:707)
   at sun.applet.AppletPanel.run(AppletPanel.java:361)
   at java.lang.Thread.run(Unknown Source)