The document created with an SVGGraphics2D object is corrupted(becomes empty)
after invoking SVGGraphics.stream(*) methods.The document must be explicitly set
to root before streaming (using SVGGraphics2D.getRoot(Document ) ) unless it's
lost. If this is the correct behavior, please update Javadoc (see bug 31625).

Code example:

 Document doc = ... ; // create a document with a dom implementation
 SVGGraphics2D svgG2d = new SVGGraphics2D(doc);
 
 //render into SVGGraphics2D object
 svgG2d.setPaint(...); svgG2d.fill(...) ....


 //stream the created Document, it works fine the first invocation
 svgG2d.stream(out, true); //out is a Writer

 //BUG-- spits an empty document. the created document is lost.
 svgG2d.stream(out,true);


remark:

  To fix this problem, one can add the following code before streaming the document:

  Element root = doc.getDocumentElement();
  svgG2d.getRoot(root);