MCSProjectNature.setPolicySourcePath(project, policySrc);
// Create the nature.
MCSProjectNature nature = new MCSProjectNature();
nature.setProject(project);
nature.configure();
// Add the nature to the project.
IProjectDescription projectDescription = project.getDescription();
String natureIds [] = projectDescription.getNatureIds();
// Create an ArrayList out of the asList() method because the