[mkgmap-dev] NPE with mkgmap 3344!

Thu Nov 6 09:07:17 GMT 2014

Hi Uli,

yes, you are probably right. 
BTW: This seems to be related to a new HashMap implementation in Java 8. 
In my environtment (with Java 7), the compareTo() method is never called
which could explain why nobody else has reported the problem.

Gerd

> Date: Thu, 6 Nov 2014 00:58:06 -0800
> From: ulibaer at gmail.com
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] NPE with mkgmap 3344!
> 
> BTW:
> Since there is a check against City object being null before the compare
> method:
> 
> 
> // TODO: look at what this is doing...
> if(city != null && other.city != null)
>         return city.getName().compareTo(other.city.getName()); <--- Here
> happens the NPE
> if (hashCode() == other.hashCode())
>         return 0;
> 
> 
> I suspect the getName()-function from City object to return <null> in some
> cases.
> I'm @ work right now and can't explore, but i remember City.getName()
> checking for Label != <null> but then calling Label.getText(), which does
> *not* check for <null>.
> 
> Best regards, Uli
> 
> 
> 
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