Couple<List<String>> (@NotNull Project project, @NotNull GlobalSearchScope resolveScope) { List<String> instanceClasses = new ArrayList<>(DEFAULT_INSTANCE_EXTENSIONS); List<String> staticClasses = new ArrayList<>(DEFAULT_STATIC_EXTENSIONS); doCollectExtensions(project, resolveScope, instanceClasses, staticClasses, "META-INF.groovy"); doCollectExtensions(project, resolveScope, instanceClasses, staticClasses, "META-INF.services"); return Couple.of(instanceClasses, staticClasses); }