Re: java.lang.NullPointerException

[Cross-posted to mozilla.dev.tech.java, Followup to
mozilla.dev.tech.java]

Wed, 3 Mar 2010 14:17:20 +0800, /galuschka/:

> What's meant about the error msg 
>
> "Error : uncaught exception: java.lang.NullPointerException"

It means somewhere in a Java code such an exception has been thrown
and hasn't been caught explicitly prior exiting the thread of
execution, or it could be caught by an event-handling loop
preventing the thread from exit, but nevertheless couldn't do any
more sensible handling than logging the exception (and the fact it
hasn't been caught prior that, i.e. it appears unexpected).  You
should get a stack trace giving you exact information where in the
code the exception has been thrown.  This type [1] of exception is
pretty general and could happen in all kind of places for all king
of reasons.

http://java.sun.com/javase/6/docs/api/java/lang/NullPointerException.html

-- 
Stanimir