java - Error transcoding SVGGraphics2D to PNG -

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i'm trying rotate svggraphics2d , export png format , i'm having problems. can me?

    exception in thread "main" org.apache.batik.transcoder.transcoderexception: null     enclosed exception:    "xmlns" attribute specified element "svg".         @ org.apache.batik.transcoder.xmlabstracttranscoder.transcode(xmlabstracttranscoder.java:136)         @ org.apache.batik.transcoder.svgabstracttranscoder.transcode(svgabstracttranscoder.java:156)         @ inclan.icon.svg.rasterizer.svgrasterizer.transcodetopng(svgrasterizer.java:382)         @ inclan.icon.svg.rasterizer.svgrasterizer.main(svgrasterizer.java:370)

my code:

protected transcoderinput input; protected transcoderoutput output;   public static void main(string [] args) throws exception {          svggraphics2d gra = getsvggraphics2d(new bytearrayinputstream(getxml().getbytes()));         tilt(gra);          fileoutputstream ops = new fileoutputstream(new file("c://users//pablosouza//desktop//svg//asf-logo-png.png"));          svgrasterizer r = new svgrasterizer(getinputstream(gra), ops);          r.transcodetopng();     }    public static svggraphics2d getsvggraphics2d(inputstream istream){      svggraphics2d svg = null;      try {         documentbuilderfactory factory = documentbuilderfactory.newinstance();         documentbuilder builder = factory.newdocumentbuilder();         document parse = builder.parse(istream);          svggeneratorcontext ctx = svggeneratorcontext.createdefault(parse);         svg = new svggraphics2d(ctx,false);      } catch (parserconfigurationexception e) {         // todo auto-generated catch block         e.printstacktrace();     } catch (saxexception e) {         // todo auto-generated catch block         e.printstacktrace();     } catch (ioexception e) {         // todo auto-generated catch block         e.printstacktrace();     }      return svg; }     public svgrasterizer(inputstream inputstream, fileoutputstream ops) {     this.input = new transcoderinput(inputstream);     this.output = new transcoderoutput(ops); }   private void transcodetopng() throws transcoderexception {     pngtranscoder png = new pngtranscoder();     png.addtranscodinghint(pngtranscoder.key_height, 100f);     png.addtranscodinghint(pngtranscoder.key_width, 100f);     png.transcode(input, output);  }     private static string getxml() {     stringbuilder sb = new stringbuilder();      sb.append("<?xml version=\"1.0\"?>");     sb.append("<!doctype svg public \"-//w3c//dtd svg 1.1//en\" ");     sb.append("\"http://www.w3.org/graphics/svg/1.1/dtd/svg11.dtd\"> ");     sb.append("<svg width=\"10cm\" height=\"8cm\" version=\"1.1\" ");     sb.append("xmlns=\"http://www.w3.org/2000/svg\"> ");     sb.append("<desc>our first svg document</desc> ");     sb.append("<!-- rectangle -->");     sb.append("<rect x=\"1cm\" y=\"1cm\" width=\"4cm\" height=\"3cm\" ");     sb.append("fill=\"moccasin\" stroke=\"midnightblue\" ");     sb.append("stroke-width=\"0.2cm\"/> ");     sb.append("<!-- circle -->");     sb.append("<circle cx=\"6cm\" cy=\"5cm\" r=\"2.5cm\" fill=\"lavender\" ");     sb.append("stroke=\"firebrick\" stroke-width=\"0.15cm\" ");     sb.append("opacity=\"0.7\"/> ");     sb.append("</svg>");      return sb.tostring(); }


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