private DependentMembersCollectorBase<T, C> getCollector(T member) {
    final ClassMembersRefactoringSupport factory = LanguageDependentMembersRefactoringSupport.INSTANCE.forLanguage(member.getLanguage());
    return factory != null ? factory.createDependentMembersCollector(myClass, mySuperClass) : null;
  }
private DependentMembersCollectorBase<T, C> getCollector(T member)