JES 2005Q4 install issues

I'm observing a stack trace when trying to install this taking all defaults. The trace occurs whether I use use the GUI or text interface. The error occurs at the installation step:

Access Manager: Sun Java System Application Server (3 of 6)

Any help is appreciated.

The stack trace looks like ...

Installation Directory [/opt/SUNWappserver/appserver] {"<" goes back, "!"

exits}:

Instance Directory [/var/opt/SUNWappserver/domains/domain1] {"<" goes back,

"!" exits}:

Access Manager Runtime Instance [server] {"<" goes back, "!" exits}:

Access Manager Instance Port {"<" goes back, "!" exits}: 8080

java.lang.NullPointerException

at com.sun.orion.validation.ValidationManager.getFailedBaseRule (Unknown Source)

at com.sun.orion.validation.ValidationManager.execute(Unknown Source)

at com.sun.orion.validation.ValidationManager.validate(Unknown Source)

at com.sun.orion.validation.ValidationFacade.validate(Unknown Source)

at com.sun.orion.installer.identserv.panels.IdentityServerS1App ServPanel.consoleInteraction(Unknown Source)

at com.sun.wizards.core.IteratorLayout.cliConsoleInteraction(It eratorLayout.java:873)

at com.sun.wizards.core.AutonextController.displayPanel(Autonex tController.java:572)

at com.sun.wizards.core.AutonextController.setCurrentPanel(Auto nextController.java:493)

at com.sun.wizards.core.IteratorLayout.setCurrentLeaf(IteratorL ayout.java:654)

at com.sun.wizards.core.IteratorLayout.next(IteratorLayout.java :1091)

at com.sun.wizards.core.WizardTreeManager.actualNextButtonPress ed(WizardTreeManager.java:1308)

at com.sun.wizards.core.WizardTreeManager.nextButtonPressed(Wiz ardTreeManager.java:1341)

at com.sun.wizards.core.IteratorLayout.run(IteratorLayout.java: 953)

at java.lang.Thread.run(Thread.java:595)

Access Manager Instance Port [8080] {"<" goes back, "!" exits}: