private void createClassInOuter(@NotNull String qualifierText, @NotNull PsiClass outerClass) {
    String name = myInterfaceName.substring(qualifierText.length() + 1);
    PsiClass psiClass = WriteAction.compute(() -> createClassInOuterImpl(name, outerClass, null));
    positionCursor(psiClass);
  }
private void createClassInOuter(@NotNull String qualifierText, @NotNull PsiClass outerClass)