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Date: Thu, 23 Oct 2008 17:18:38 +1100
From: Cameron McCormack <cam@mcc.id.au>
To: batik-users@xmlgraphics.apache.org
Subject: Re: Odd LinearGradient problem with Batik
Message-ID: <20081023061838.GM20693@arc.mcc.id.au>
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References: <20081020220234.39759132@sovvan>
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Organization: Clayton School of IT, Monash University
User-Agent: Mutt/1.5.17+20080114 (2008-01-14)

G. Wade Johnson:
> I'm doing some testing with some of my older SVG applications and ran
> into an odd behavior in Batik 1.6 and 1.7.
> 
> I am applying a linear gradient as a fill to a path. The path starts
> out as a point at (0, 0). In my application, I extend the path through
> scripting to make a sort of strip chart.
> 
> The problem is that Squiggle (in either 1.6 or 1.7) immediately fails
> with an NPE if I use a linear gradient on this empty path. If I use a
> solid color, there is no problem.
> 
> Since I originally developed this application with Squiggle as my
> viewer, I quite certain it worked once upon a time. But, now I get the
> following error.
> -----------------------------
> java.lang.NullPointerException
> 	at
> org.apache.batik.bridge.SVGLinearGradientElementBridge.buildGradient(SVGLinearGradientElementBridge.java:127)

There was a bug on this line that has been fixed since the 1.7 release.
If you try it with a recent SVN version you shouldn’t get the NPE.

Definitely this shouldn’t throw an exception, here.

-- 
Cameron McCormack ≝ http://mcc.id.au/

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