void (Collection<? extends PsiFile> files) { Collection<PropertiesFile> createdFiles = ContainerUtil.map(files, dom -> { final PropertiesFile file = PropertiesImplUtil.getPropertiesFile(dom); LOG.assertTrue(file != null, dom.getName()); return file; }); ResourceBundle mainBundle = myResourceBundle; final Set<ResourceBundle> allBundles = new HashSet<>(); if (mainBundle != null) { allBundles.add(mainBundle); } boolean needCombining = false; for (PropertiesFile file : createdFiles) { final ResourceBundle rb = file.getResourceBundle(); if (mainBundle == null) { mainBundle = rb; } else if (!mainBundle.equals(rb)) { needCombining = true; } allBundles.add(rb); } if (needCombining) { final List<PropertiesFile> toCombine = new ArrayList<>(createdFiles); final String baseName = getBaseName(); if (myResourceBundle != null) { toCombine.addAll(myResourceBundle.getPropertiesFiles()); } ResourceBundleManager manager = ResourceBundleManager.getInstance(mainBundle.getProject()); for (ResourceBundle bundle : allBundles) { manager.dissociateResourceBundle(bundle); } manager.combineToResourceBundle(toCombine, baseName); } }