RequestContainer requestContainer = this.getRequestContainer();
SessionContainer session = requestContainer.getSessionContainer();
impManager = (IImportManager) session.getAttribute(ImportExportConstants.IMPORT_MANAGER);
impManager.openSession();
impManager.importObjects(overwrite, session);
ImportResultInfo iri = impManager.commitAllChanges();
response.setAttribute(ImportExportConstants.IMPORT_RESULT_INFO, iri);
AssociationFile assFile = impManager.getAssociationFile();
if (assFile != null) response.setAttribute(ImportExportConstants.IMPORT_ASSOCIATION_FILE, assFile);
} catch (EMFUserError emfue) {
if (impManager != null)