public void beforeAllCompilationUnits() {
rels = new RelationsEnvironment();
constraints = new ConstraintEnvironment(rels);
infers = new InferenceEnvironment(rels);
retriever = new XMLRetriever(rels);
majorErrorOccured = false;
try {
ReportingUtility.clearMarkers(ResourcesPlugin.getWorkspace().getRoot());
rels.populate(null);