| ANT task to process properties-files into static class | ANT task to process properties-files into static class 2007-01-03 - By Keith Hatton
Two more robust solutions spring to mind:
1. You can use Properties.getProperty(String,String) to prevent your
NPE. The first string is the property name, the second is a default
value to be used when the property is not present.
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Properties.html#getPro
perty(java.lang.String,%20java.lang.String)
2. Check for null values in your code - and if the property is mandatory
but missing, then throw an appropriate exception to the user.
Hope this helps,
Keith
-----Original Message-----
From: Rapthor [mailto:rapthor@(protected)]
Sent: 02 January 2007 21:42
To: user@(protected)
Subject: Re: ANT task to process properties-files into static class
Scot P. Floess wrote:
>
> If a property does not exist, why is a null pointer thrown? I assume
> you mean java.util.Properties? If so, that does not raise a null
> pointer exception.
>
You are right ... the NullPointerException would be thrown if I relied
on a
value read from the Properties instance. (If no matching key was present
in
the file.)
--
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