NPE: "href" is null in Use

[jschneider]

I am not sure what exactly is the cause for this problem. But debugging shows that the "href" in the class "Use" is null.

Searching in the SVG (which I may not share) shows this:

<use
   href="#Flags"
   id="MyId"
   x="0"
   y="0"
   width="100%"
   height="100%"
   transform="translate(-284.35164,225.73852)" />

This is a file created by inkscape which seems to reference that part:

<defs
    id="defs1908">
<symbol
       id="Flags"><g [...]

java.lang.NullPointerException
	at com.kitfox.svg.SVGUniverse.getElement(SVGUniverse.java:336)
	at com.kitfox.svg.SVGUniverse.getElement(SVGUniverse.java:308)
	at com.kitfox.svg.Use.getBoundingBox(Use.java:157)
	at com.kitfox.svg.Group.calcBoundingBox(Group.java:271)
	at com.kitfox.svg.Group.getBoundingBox(Group.java:252)
	at com.kitfox.svg.Group.calcBoundingBox(Group.java:271)
	at com.kitfox.svg.Group.getBoundingBox(Group.java:252)
	at com.kitfox.svg.Group.calcBoundingBox(Group.java:271)
	at com.kitfox.svg.Group.getBoundingBox(Group.java:252)
	at com.kitfox.svg.SVGRoot.getBoundingBox(SVGRoot.java:380)
	at com.kitfox.svg.SVGRoot.prepareViewport(SVGRoot.java:180)
	at com.kitfox.svg.SVGRoot.build(SVGRoot.java:159)
	at com.kitfox.svg.SVGRoot.updateTime(SVGRoot.java:467)
	at com.kitfox.svg.SVGDiagram.updateTime(SVGDiagram.java:243)
	at com.kitfox.svg.SVGUniverse.loadSVG(SVGUniverse.java:610)
	at com.kitfox.svg.SVGUniverse.loadSVG(SVGUniverse.java:466)
	at com.kitfox.svg.SVGUniverse.getDiagram(SVGUniverse.java:401)
	at com.kitfox.svg.SVGUniverse.getDiagram(SVGUniverse.java:365)

[blackears]

Would you be able to attach an svg file that demonstrates the problem?