[Microba-controls] NPE on reloading page with applet containing DatePicker

[Himanshu R. <him...@gm...>]

Hi,

I am using DatePicker in an applet. (JRE - 1.5.12 and JDK 1.5)
If I change the page and visit the page with the applet again, the date
picker does not instantiate. this is the stack trace:

Exception in thread "AWT-EventQueue-3" java.lang.NullPointerException
    at java.util.Hashtable.remove(Unknown Source)
    at javax.swing.UIDefaults.put(Unknown Source)
    at
com.michaelbaranov.microba.common.MicrobaComponent.updateUI(MicrobaComponent.java:41)
    at
com.michaelbaranov.microba.calendar.CalendarPane.<init>(CalendarPane.java:195)
    at
com.michaelbaranov.microba.calendar.DatePicker.<init>(DatePicker.java:120)
    at
com.michaelbaranov.microba.calendar.DatePicker.<init>(DatePicker.java:105)

Any Ideas or work arounds. (If I restart the browser everything works fine).
Also, I have disabled caching on applets.


Looks like UIManager.get(this.getUIClassID()) in MicrobaComponent is
returning null or in other words UIManager cannot locate the defaults for
the UI ClassID of the DatePicker

Himanshu