IBM System Debugger error

["sjl" <sjl_abc@xxxxxxxxxxx>]

(V5R4M0)

This morning I installed the IBM System Debugger as described in this 
article by Scott Klement:  http://systeminetwork.com/node/61011

I can launch the System Debugger with the batch file described in the 
article, but when I then click on 'Debug->Start Debug', it doesn't pop up a 
window for me to enter the program information on the program to debug.

Instead, in the Command window behind the application, I see an error 
message that says

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at 
com.ibm.iseries.debug.dialog.ISeriesJobNum.isValid(ISeriesJobNum.java:66)
        at java.awt.Component.invalidateIfValid(Unknown Source)
        at java.awt.Component.setLocale(Unknown Source)
        at javax.swing.JComponent.<init>(Unknown Source)
        at javax.swing.text.JTextComponent.<init>(Unknown Source)
        at javax.swing.JTextField.<init>(Unknown Source)
        at javax.swing.JTextField.<init>(Unknown Source)
        at 
com.ibm.iseries.debug.dialog.ISeriesJobNum.<init>(ISeriesJobNum.java:
56)
        at 
com.ibm.iseries.debug.dialog.StartDebugDialog.createJobPanel(StartDeb
ugDialog.java:805)
        at 
com.ibm.iseries.debug.dialog.StartDebugDialog.addComponents(StartDebu
gDialog.java:348)
        at 
com.ibm.iseries.debug.dialog.StartDebugDialog.<init>(StartDebugDialog
.java:225)
        at 
com.ibm.iseries.debugmanager.action.DebugManagerStartDebugAction.run(
DebugManagerStartDebugAction.java:102)
        at 
com.ibm.iseries.debug.util.Action.actionPerformed(Action.java:383)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown 
Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown 
Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.AbstractButton.doClick(Unknown Source)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
        at 
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown
Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
        at java.awt.Container.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown 
Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown 
Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)