ResourceSet resourceSet = new ResourceSetImpl();

    resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap()
        .put(Resource.Factory.Registry.DEFAULT_EXTENSION, new exampleResourceFactoryImpl());

    resourceSet.getPackageRegistry().put(examplePackage.eNS_URI, examplePackage.eINSTANCE);

    URI uri = URI.createFileURI(location);

    Resource res = resourceSet.getResource(uri, true);

    DocumentRoot documentRoot = exampleFactory.eINSTANCE.createDocumentRoot();

    res.getContents().add(documentRoot);
   
    try {
      res.save(null);
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }