#16 Saving a graph from a GML graph

[Marc]

When I save a Graph loaded from an GML into XML format,
there is the following error:

GraphDomMediator.saveToXml() No DOM document for graph
'forest1.gml'
It's confirmed in the log file.

the problem comes from the method :

public static void saveToXml(File file, Graph graph,
Layout layout) in class GraphDomMediator

when it tries to find the DocumentImpl associated to
the file.

I don't know how to fix it !