private static void correctOldClassReferences(final PsiClass newClass, final PsiClass oldClass) {
    final Collection<PsiReference> all = ReferencesSearch.search(oldClass, new LocalSearchScope(newClass.getContainingFile())).findAll();
    for (PsiReference reference : all) {
      final PsiElement element = reference.getElement();
      final PsiElement parent = element.getParent();
      if (parent instanceof GrImportStatement && !((GrImportStatement)parent).isStatic()) {
        parent.delete();
      }
      reference.bindToElement(newClass);
    }
  }
private static void correctOldClassReferences(final PsiClass newClass, final PsiClass oldClass)