UmlResource resource = new UmlResource();
resource.setName("xmi.1");
resource.setLocation("/home/goldivan/Documenti/poli/gallotti/Examples_Input/CaseStudyPolimi(ATOP).uml");
resource.setConfigProperty("isXmiValid", "true");
try {
project.addResource(resource);
} catch (ResourceException e) {
e.printStackTrace();
assertTrue(false);
}